Hi Ronni
Thanks very much for prompting me about this. I carefully noted all your
comments. I applied your recommendations regarding Safari as I feel this
potentially has some bearing on the peculiar behaviour of my system. I have
been recording various "happenings" on my network as changes to the setup were
made to try and make sense of the Apple TV problem. And spent many fruitless
hours reading user forums and Apple support articles.
I have not deleted old messages appended in this email, but if you do respond
perhaps it will be the time to save space!
The basic problem still exists: Apple TV will not connect if the iMac is
sleeping. Initially reported as intermittent, but I'm trying to tie that down.
I think we drifted off course chasing other issues. Now have software for
ATV ver 5.1, OS X 10.8.2 Supp 1 and iTunes 10.7 installed. I will give my
current "status report" and then address the particular items you raised.
Oddity No 1: Console log messages show a lot of mdworker, lsboxd and sandbox
events every few minutes while Mac is sleeping OR awake (but quiet).
("mdworker unable to talk to lsboxd" is typical.) Forums suggest this may be
normal for OS X 10.8 and is to do with Spotlight. Doesn't sound quite right
to me, but then …
Oddity No 2: With iMac sleeping, sometimes the Belkin LEDs are not flashing -
just the WiFi LED flicks about every 90 seconds. There are NO "mdworker" log
entries in Console during this state. I confirm that Apple TV does not wake
Mac in this state.
Summary of problem: Apple TV displays a message to effect that Computers will
display contents of (Apple ID) Library when Home Sharing is turned on. If I
touch the space bar on the iMac keyboard, the Apple TV then connects to iTunes
and my library is displayed. (I don't have to login or activate iTunes.)
Your questions: (But Safari/web have been much more stable in the last week,
even before I started on your recommendations.)
What DNS Servers do you have assigned in your Belkin? Are you using iiNet DNS
Servers?
iiNet DNS IP Address:
Primary: 203.0.178.191
Secondary 203.215.29.191
YES to both - auto ISP selection.
In Safari:
Do you have any Extensions?
One only - 1Password. No difference when turned off.
A) Disable Java
Disabled - no effect.
B) Remove cookies and other Data
Removed most entries - no effect
C) Turn OFF Autofill - "Other Forms"
Never used, no entries.
Remove all website data:
Did all this by following an Apple Support document a few weeks ago in
attempt to get reliable access to BankWest. (I didn't; and don't - but that's
another story…) I followed the on-screen prompts when message said "Safari
could not connect to this site." Went through several steps of deleting
various degrees of data, but didn't do the ultimate steps (re-install OS X or
somesuch). Slow browsing while re-populating wanted caches showed that
removing all data is a big step I didn't want to repeat just now.
To close: Thanks again for your interest in pursuing this issue. I would
love to get it resolved.
Cheers
Alan
++++++++++++++++++
On 08/10/2012, at 10:15 AM, Ronni Brown <ro...@mac.com> wrote:
Hi Alan,
I'm resending my reply that I sent to WAMUG on 2 October 2012 5:49PM as you
have not responded perhaps you have seen the email.
Resent email to WAMUG/
Hi Alan,
I'm not sure if you were wanting me to respond to your email below, or you were
just giving your observations.
The Belkin ADSL2+ F5D7633au4A is only a Wireless G (802.11g) 54Mbps 2.4GHz
Wireless Network - (NOT a Dual-Band or a 802.11n 5GHz wireless Router).
>> Its WiFi performance has been adequate for my needs and gave no problems.
>> Still use it for iPad2 network access.
Your iPad would only be connecting to your slower wireless 802.11g 2.4GHz
Network .
Your iMac, iPad2, & AppleTV can all connect to the faster Wi-Fi 802.11n 5GHz
Networks.
An iPhone connects to the 2.4GHz speed of a Dual-Band Network.
>> I initially operated the Apple TV with WiFi, but as I had the spare
>> ethernet cable I changed to a wired connection. There is perhaps a
>> performance improvement from WiFi to Ethernet, with files loading more
>> quickly
Ethernet is the best choice for your current Network.
Apple TV 2 supports Ethernet 10/100, so wireless 802.11n would be at least as
fast "in theory"; but, even though wireless 802.11n is faster on paper, there
can be many things that interfere with the signal (distance, walls, other radio
signals etc.).
So long as you don't have issues with your Network, WiFi will work just as
well, but Ethernet removes all the 'ifs'.
>> Recent home network performance has not been 100%. Dropouts are not noted,
>> but occasionally I have no connection.
>> (1) Mail Inboxes showing squigglies or caution icons that don't disappear
>> when I force a "get mail" operation. This only (?) occurred when waking
>> from sleep - Mail behaves when I am working at the computer. (2) Safari
>> sometimes fails to load a page and eventually times out.
What DNS Servers do you have assigned in your Belkin? Are you using iiNet DNS
Servers?
iiNet DNS IP Address:
Primary: 203.0.178.191
Secondary 203.215.29.191
The secondary address is used only if no response comes from the first DNS
server.
If the first DNS server replies that it cannot find the requested host, the
secondary is not called.
In Safari:
Do you have any Extensions?
Disable (turn OFF) anything that is in
Safari > Preferences.. > Extensions
Restart Safari and test.
Any improvement?
If so "Turn ON" each extension you need, one at a time, and Test.
A) Disable Java
1. Safari > Preferences, select Security
2. Don't have a tick in "Enable Java"
Disabling Java in Safari is highly recommended for safe computing, as well.
You should enable it only when on a trusted site that requires it.
B) Remove cookies and other Data
1. Safari > Preferences, and then click Privacy.
2, Click "Details".
3. Select one or more websites that stores cookies, and then click "Remove" or
"Remove All".
4. When you finish removing websites, click Done.
C) Turn OFF
1. Safari > Preferences, select Autofill
2. Click the Edit button for "Other Forms"
3. Select "Remove All"
Remove all website data:
Removes cookies, tracking information, and other data that websites stored on
your computer.
It doesn't look like Belkin have updated the firmware for your Modem since
8/5/07
<http://www.belkin.com/au/support/article/?lid=ena&pid=F5D7633au4A&aid=6431&scid=814>
>> Came to unconfirmed conclusion that my basic model iMac (no graphics card?)
What do you mean "No Graphics card"?
Your iMac Graphics Card NVIDIA GeForce 9400M or ATI Radeon HD 4670
>> I would have claimed to have mostly basic Apple apps, but there are actually
>> a number of third-party apps installed - some with unknown functions. But
>> I don't think there are any way-out apps running secretly in the background
>> to throw the occasional spanner around.
I would not be so sure about that! Left over "Clutter" from previous systems
can slow your Mac down and also cause problems.
Over time, your disk accumulates obsolete, extraneous, or otherwise useless
files, often called “cruft”—hacker slang for digital detritus. Removing cruft
increases the disk space available for Mountain Lion and reduces the chance of
software conflicts.
The Mountain Lion installer looks for, and disables, certain types of
incompatible software—but there’s no guarantee it will find everything. Given
the choice, you’re usually better off upgrading third-party software before you
install a new version of your operating system.
In cases where low-level incompatibilities exist, especially with things like
drivers, preference panes, kernel extensions, and startup items, you can save
yourself grief by preventing, rather than fixing, the problem.
Clean up your Mac, "uninstall" any applications, third party widgets,
utilities, anything on your Mac you no longer use or need.
Cheers,
Ronni
17" MacBook Pro 2.3GHz Quad-Core i7 “Thunderbolt"
2.3GHz / 8GB / 750GB @ 7200rpm HD
OS X 10.8.2 Mountain Lion
Windows 7 Ultimate (under sufferance)
On 23/09/2012, at 9:10 PM, Alan Smith <sma...@iinet.net.au> wrote:
> Hi Ronni
>
> You've given food for thought.
>
> The Belkin router performance has been impeccable. It is a "Belkin ADSL2+
> Modem with Wireless -G Router" bought from Harvey Norman in 2006. Model
> number is F5D7633au4A. (This is different to the Belkin modem that iiNet
> used to supply.) Its WiFi performance has been adequate for my needs and
> gave no problems. Still use it for iPad2 network access. I initially
> operated the Apple TV with WiFi, but as I had the spare ethernet cable I
> changed to a wired connection. There is perhaps a performance improvement
> from WiFi to Ethernet, with files loading more quickly. Apple TV is mainly
> used to play music from the Mac internal drive and SD videos from a Firewire
> 800 external drive.
>
> Recent home network performance has not been 100%. Dropouts are not noted,
> but occasionally I have no connection. Really only manifest in two ways.
> (1) Mail Inboxes showing squigglies or caution icons that don't disappear
> when I force a "get mail" operation. This only (?) occurred when waking from
> sleep - Mail behaves when I am working at the computer. (2) Safari sometimes
> fails to load a page and eventually times out. This has caused irritation
> but has not been frequent enough for me to log events and take up the issue
> with iiNet. I checked my connection history on iiNet Toolbox a few weeks ago
> and was a bit surprised to see that the current ip address had been constant
> for some weeks. I checked again tonight - iiNet history shows I have had
> the current ip connection "on" since 4 September. Nothing relevant in my
> personal log for that date. Pointer to an internal Router or Mac problem?
>
> iMac is a late 2009 model - iMac 21.5" Intel Core 2 Duo 3.06GHz - OSX
> 10.8.2. Upgraded to 12GB RAM in June 2012 when trying to improve video
> display performance with external HD webcam and also use AirParrot mirroring.
> Came to unconfirmed conclusion that my basic model iMac (no graphics card?)
> just couldn't handle HD video. (The same webcam and AirParrot worked very
> well on a late 2009 high spec iMac 27" with 8GB RAM.) I'm reconciled that
> the 2009 Mac does not support AirPlay and is not good enough for AirParrot.
> Now moved on. I will use GoToMeeting webinar software plus a camcorder,
> iPad, and a borrowed MacBook Air for AirPlay to the AppleTV and big screen!
>
> I would have claimed to have mostly basic Apple apps, but there are actually
> a number of third-party apps installed - some with unknown functions. But I
> don't think there are any way-out apps running secretly in the background to
> throw the occasional spanner around.
>
> Next time Safari fails to load a page from the iMac, I'll try to access the
> page via the iPad. May help isolate problem to network or iMac. This Safari
> issue is one of the things I also feel started with Mountain Lion. I have
> other Safari - Mountain Lion issues too, but I won't raise them here!
>
> Cheers
> Alan
>
>
> On 23/09/2012, at 3:40 PM, Ronda Brown <ro...@mac.com> wrote:
>
> Hi Alan,
>
>> It is an intermittent problem
>
> Does your Network experience any dropouts or performance issues?
> If so that could be attributing to the problem, how old is the Router?
>
> Also what iMac do you have, is it one released Mid 2011 or newer?
> If so you can use Airplay and uninstall AirParrot as you shouldn't require it.
> If not, make sure you are using the latest release of AirParrot and that it
> is compatible with OS X 10.8.2
>
> Cheers,
> Ronni
> Sent from Ronni's iPad
>
> On 23/09/2012, at 2:39 PM, Alan Smith <sma...@iinet.net.au> wrote:
>
>> Hi Ronni
>>
>> Thanks for following up and clarifying the issues. I thought you were
>> proposing I leave the iMac in server mode as the permanent solution. . .
>>
>> Your questions and my answers …
>> Is this how you have Apple TV Setup?
>> 1. Both the iMac and the Apple TV are connected by Ethernet cables to your
>> Router
>> ….Yes.
>> 2. The Apple TV is connected to your TV via a HDMI cable ... How far is the
>> TV from the Router?
>> ...Yes. ATV is connected via a 15metre Cat 6 cable (it is 5 metres "air"
>> distance).
>> 3. Both are connected to the same Network and have the same subnet and in
>> the same IP Range as the Router?
>> …YES. Subnet 255.255.255.0; IP addresses 192.168.2.1 (router), 192.168.2.8
>> (mac) and 192.168.2.11 (atv).
>> 4. Home Sharing is turned ON
>> …Yes
>>
>> It is an intermittent problem. iMac was in sleep mode from around 5:30
>> this morning. Activated Apple TV around 11:40 and it worked beautifully.
>> I do have AirParrot installed, but not used for many weeks. Probably a red
>> herring, but AirParrot appears in the Console log during the regular 100
>> minute activity period. Most other log entries are quite beyond my
>> comprehension. All I do is look for patterns.
>>
>> I saw a couple of complaints in the Apple Discussion forum after OSX 10.8.
>> I assumed Apple would fix any issues with OSX 10.8.1 - or 10.8.2 , but never
>> followed it further on the Discussion forum (nowhere near as helpful as
>> WAMUG.) Never saw any comment on TUAW or Macworld so I assumed it was a
>> problem with me and not Apple. Perhaps a fix with the new iTunes - or OSX
>> 10.9?
>>
>> Cheers
>> Alan
>>
>>
>>
>> On 23/09/2012, at 11:34 AM, Ronni Brown <ro...@mac.com> wrote:
>>
>> Hi Alan,
>>
>> On 23/09/2012, at 5:17 AM, Alan Smith <sma...@iinet.net.au> wrote:
>>
>>> Hi Ronni
>>>
>>> Your response is appreciated and I can make sense of most of it.
>>>
>>> I'm still uncertain about the following.
>>>
>>> 1. Leaving iMac powered on (as a server, with just the display turned off)
>>> makes sense as one solution to giving Apple TV access at any time.
>>> But why won't it wake the Mac from sleep on demand?
>>
>> The "Why" is what we are trying to ascertain :-)
>> Is this how you have Apple TV Setup?
>> 1. Both the iMac and the Apple TV are connected by Ethernet cables to your
>> Router
>> 2. The Apple TV is connected to your TV via a HDMI cable ... How far is the
>> TV from the Router?
>> 3. Both are connected to the same Network and have the same subnet and in
>> the same IP Range as the Router?
>> 4. Home Sharing is turned ON
>>
>>> Is the Apple TV (WiFi or Ethernet) a "Bonjour registered service" as
>>> defined in HT3774?
>>
>> Yes, Apple TV works on both Ethernet and Wi-Fi.
>> Airplay also works between all devices on the same network, wired or
>> wireless.
>>
>>> Is an ATV just not capable of waking the Mac anyway?
>>
>> It should be able to wake the Mac.
>>
>> On searching the Internet this morning though I find that a huge amount of
>> people are experiencing similar to you and all since upgrading to Mountain
>> Lion.
>> Most are of the opinion there is a 'bug' in "Wake-on-LAN' in Mountain Lion.
>> Since the ML release, 'Wake for Network Access' doesn't seem to be working.
>>
>> I don't have an Apple TV to test this. Perhaps someone on WAMUG who is using
>> Apple TV in Mountain Lion could let us know if this is the case... or not.
>>
>>>
>>>> I thought Bonjour etc was supposed to allow network connection when system
>>>> was "fully" asleep.
>>>
>>> Yes, it should, especially as you have the iMac wired 'Ethernet', not
>>> wireless. WiFi 'wake for network access' only works with Apple's own WiFi
>>> routers as mentioned above.
>>>
>>> 2. Can you clarify "sleep" for me?
>>
>> I thought I did in my previous reply :)
>> /quote from previous reply:
>> "When a Mac goes to sleep, almost every component inside the computer is
>> turned off; what is not turned off is set in a 'low-power mode'. The
>> contents of the RAM and Video RAM are saved, the network ports might still
>> get a little power, and a few other subsystems stay on, but pretty much
>> everything else is off."
>> /End Quote from previous reply
>>
>>> I am not a "casual" Mac user, I am a very "serious" user.
>> 'Casual' was probably not the word I should have used, I meant it in the
>> instance of you using the iMac mainly for AppleTV or a Media Centre type
>> setup.
>>
>>> But the Mac gets very light work and spends most of its time idle and,
>>> perhaps, sleeping. My practice has been to just walk away from the Mac and
>>> let it go to sleep automatically.
>>
>> That is good practice, nothing wrong with this. I use a MBP, so I just close
>> the display top and the MBP goes to sleep.
>>
>>> I very rarely use Apple > Sleep to invoke immediate sleep. I assume that
>>> "display sleep" and "computer sleep" in Energy preferences are just
>>> different power levels of the "sleep" setting.
>>
>> "Display Sleep" just sleeps the Display; "Computer Sleep" includes "Display
>> sleep".
>>
>> From Apple Support <http://support.apple.com/kb/HT2412>
>> "What happens when the Mac goes to sleep (not just into idle mode or display
>> sleep)?
>> On all Macs.
>> *The microprocessor goes into a low-power mode
>> *Video output is turned off, and a connected display may turn off or enter
>> its own idle state
>> *Apple-supplied hard disks spin down; third-party hard disks may spin down
>>
>> On portable Macs:
>>
>> • The Ethernet port turns off, if applicable (see note below)
>> • Expansion card slots turn off
>> • The built-in modem, if present, turns off (see note below)
>> • An AirPort card, if present, turns off (see note below)
>> • The USB ports only responds to the power key on an external keyboard (see
>> below)
>> • The optical media drive, if present, spins down
>> • Audio input and output turns off
>> • Keyboard illumination, if a feature of your portable computer, turns off
>>
>> A computer uses considerably less power when in sleep mode than when awake.
>> The computer will continue to power RAM in sleep mode, so that whatever was
>> in RAM when the computer went to sleep will still be there when the computer
>> wakes. This also means that computers with more RAM use slightly more power
>> in sleep mode.
>>
>> Note: Portable computers have no network connectivity when in sleep mode,
>> but can wake if the Energy Saver option "Wake for network access" is
>> enabled. If you wish to use file sharing or don't want to interrupt your
>> Internet connection, you should not manually put the computer to sleep, and
>> you should drag the "Computer sleep" slider to Never."
>>
>>
>>> I further assume with just the display turned off (ctrl-shift-eject) the
>>> Mac is NOT in sleep mode.
>> That's correct, only the Display is asleep, not the computer.
>>
>>> If I set the Energy preferences display sleep to "30 minutes" and computer
>>> sleep to "never", is this essentially the same as "server mode" using
>>> ctrl-shift-eject?
>>
>> The only difference is, ctrl-shift-eject immediately puts the display to
>> sleep; selecting Display Sleep to "30 minutes" in Energy Preferences the
>> Display will sleep after 30 minutes of no use.
>>
>> Cheers,
>> Ronni
>>
>>>
>>> Cheers
>>> Alan
>>>
>>>
>>> On 22/09/2012, at 8:03 PM, Ronni Brown <ro...@mac.com> wrote:
>>>
>>> Hi Alan,
>>>
>>> I need to stop work as I'm tired and must give my body some food, but I'll
>>> try to reply as best I'm able to. I hope I make sense...
>>>
>>> On 22/09/2012, at 4:51 PM, Alan Smith <sma...@iinet.net.au> wrote:
>>>
>>>> Hi Ronni
>>>>
>>>> First my questions.
>>>>
>>>> 1. Are you suggesting I set Energy Saver for computer sleep to "never"? I
>>>> am reluctant to do this - comments later.
>>>
>>> When you mentioned the problems you are having in your original post; that
>>> is why I suggested setting just the 'Display to Sleep' instead of the
>>> 'Computer to sleep'.
>>> Then the iMac is essentially an "always on" - 'Server' at that point.
>>> Modern iMacs are relatively low power draw devices with the display turned
>>> off if you have power draw concerns.
>>>
>>> For the casual Mac user, it’s probably best to put a Mac to sleep when it’s
>>> not in use though, it gives hard drives and fans a rest, and will generally
>>> lead to a longer lifespan of the computer.
>>>
>>>> 2. I understood Mac users are advised to leave their computers permanently
>>>> "on" rather than completely powering off every night. Is this no longer
>>>> the rule?
>>>
>>> I only 'Sleep' my MBP, other than restarting after updates/upgrades etc and
>>> only 'Shutdown' if leaving for more than a few days.
>>> My MacMini that runs my EyeTV and acts as a Media Centre (of sorts) is
>>> always ON.
>>>
>>> This is an article that I have always adhered to:
>>> "SHOULD I SLEEP OR SHUT DOWN MY MAC?:
>>>
>>> This topic is oft debated in many Mac forums, and does not really have a
>>> concrete answer; a lot depends on what you do with your Mac, and what Mac
>>> you use.
>>> Before deciding whether to shut down or sleep your Mac, you should know (A)
>>> what happens in each process, and (B) the pros and cons to both practices.
>>>
>>> Sleeping:
>>>
>>> Many computer users (myself included) almost NEVER shut down their
>>> computers. There are many positive benefits to this (especially if you're a
>>> Mac user). When a Mac goes to sleep, almost every component inside the
>>> computer is turned off; what is not turned off is set in a 'low-power
>>> mode'. The contents of the RAM and Video RAM are saved, the network ports
>>> might still get a little power, and a few other subsystems stay on, but
>>> pretty much everything else is off.
>>>
>>> PC laptops are a little different - because MS can't get its act together,
>>> PCs 'hibernate' - like a really deep sleep. The hard drive is accessed a
>>> lot during the 'hibernate' and 'unhibernate' times, causing a lot of wear
>>> and tear and much energy usage. This also takes a lot longer than the Mac
>>> way. I don't like PCs much (can you tell?).
>>>
>>> On a laptop, this mode uses VERY little battery power - if you're going to
>>> use your laptop again within a day or so without the power adaptor plugged
>>> in, this could actually save battery power, as shutting down/starting up
>>> uses a lot more energy (much more disk access, processor power, etc.). On a
>>> desktop, this could save a little energy (thus a few $$$), especially if
>>> you put it to sleep a few times a day when you know you won't be using it.
>>>
>>> The best advantage to sleeping is that the computer (a) goes to sleep
>>> almost immediately, allowing quick transport of a laptop, and no vigilance
>>> after clicking 'Shut Down...' on a desktop, and (b) wakes up almost
>>> immediately, allowing you to get to work right away.
>>>
>>> Shutting Down:
>>>
>>> Shutting down a computer has a few benefits as well. One is that NO power
>>> is being used at all - for laptops, it's best to shut it down if you're not
>>> going to use it for a day or two, as it will save a little bit of energy
>>> and heat from being wasted in your laptop.
>>> On a desktop, you might wish to shut down so that you can transport it, or
>>> if you won't use it for a long while.
>>>
>>> Also, shutting down completely wipes away the computer's RAM (random access
>>> memory), which might have some corrupt/junk data left in it from various
>>> things the computer does. It also lets the computer's components cool down.
>>> I definitely recommend shutting down at least once a month or so.
>>>
>>> However, when you shut down and start up your computer, the hard drive and
>>> other components get more wear and tear, and use more energy.
>>>
>>> The Verdict:
>>>
>>> I recommend all Mac users to sleep their computers unless they won't be
>>> used for more than a day or two, and all Mac users should shut down their
>>> computers at least once a month to clean out all the gibbledygook that
>>> collects inside the components."
>>>
>>>> Second, my settings.
>>>>
>>>> System Preferences > Energy Saver has "wake for network access" checked.
>>>
>>> In addition, the Network that the host computer and the Apple TV (2nd or
>>> 3rd generation) is connected to must support 'Wake on Demand' feature.
>>> <http://support.apple.com/kb/HT3774>
>>>
>>> This works by partnering with a service running on your
>>> AirPort Base Station or Time Capsule called Bonjour Sleep Proxy.
>>>
>>>> Energy Saver times are set to 25 mins for both Computer and Display sleep.
>>>> Also checked to put hard drive to sleep when possible.
>>>> Password login in Security & Privacy is set to 1 hour after sleep.
>>> Why Require password 1 hour after sleep or screen saver begins?
>>>
>>>> iTunes has "Home Sharing ON" (permanently).
>>> Correct.
>>>
>>>> ATV can see iTunes libraries just by touching the space bar on keyboard
>>>> and entering password in iMac. It is not necessary to close down iTunes
>>>> and relaunch it (which I used to do). May not even need password
>>>> entered, but I haven't tried that variable.
>>>> I normally leave the iMac powered up, with say a weekly restart and
>>>> monthly power shutdown when strange things are manifest.
>>>>
>>>> And third, more comments.
>>>>
>>>> I thought Bonjour etc was supposed to allow network connection when system
>>>> was "fully" asleep.
>>>
>>> Yes, it should, especially as you have the iMac wired 'Ethernet', not
>>> wireless. WiFi 'wake for network access' only works with Apple's own WiFi
>>> routers as mentioned above.
>>>
>>>> In Console I get System Log messages right through the night at seemingly
>>>> regular intervals. Probably making wrong assumptions here.
>>>>
>>>> I feel problems started with upgrade to Mountain Lion (from Snow Leopard).
>>>> Lot of other strange things occur but should not be relevant to this Mac
>>>> sleep - iTunes - ATV issue.
>>>
>>> If this is the case, you might need to re-install Mountain Lion.
>>>
>>> Cheers,
>>> Ronni
>>>
>>>>
>>>> Regards, Alan
>>>>
>>>> On 22/09/2012, at 3:57 PM, Ronni Brown <ro...@mac.com> wrote:
>>>>
>>>> Hi Alan,
>>>>
>>>> When the iMac sleeps there is no network connectivity. You can put just
>>>> the display to sleep (ctrl-shift-eject does this).
>>>> This will turn off the display and conserve power whilst still keeping the
>>>> iMac turned on and thus the network connection(s).
>>>>
>>>> Or, Perhaps try turning on 'Home Sharing' and see if that helps?
>>>>
>>>> Also what happens if you Quit iTunes and Re-launch iTunes?
>>>>
>>>> Cheers,
>>>> Ronni
>>>>
>>>> On 22/09/2012, at 3:19 PM, Alan Smith <sma...@iinet.net.au> wrote:
>>>>
>>>>> Help please with aN irritating, irregular, but non-fatal problem with
>>>>> Apple TV (or iMac).
>>>>>
>>>>> With iMac in sleep mode and with password needed to start (say one hour
>>>>> minimum unused), Apple TV 2 cannot activate iTunes. ATV can access
>>>>> YouTube at this time. ATV message is to turn home sharing on. All that
>>>>> is needed is to just physically wake the Mac and sign in.
>>>>>
>>>>> Not consistent! Sometime will work with ATV fired up first thing in
>>>>> morning.
>>>>>
>>>>> IMac wifi is off. ATV connected to Belkin router via Ethernet. Wake for
>>>>> network access is checked in system preferences.
>>>>>
>>>>> Running Mountain Lion and all software is up to date.
>>>>>
>>>>> Irritating because I have a deep TV chair and the Mac is rooms away!
>>>>>
>>>>> Alan Smith
>>>>>
>>>>> Sent from my iPad
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