Hello Ronni,
Here are the values.
Before proceeding further, I can tell you that I moved the ethernet cable from 
outport 3 to outport 1 and it has been stable today.
Maybe there was an issue with the ethernet cable socket???
> What values are shown for the following please.
> 
> Configure IPv4:Using DHCP
> 
> IPv4 Address:192.168.0.2
> 
> Subnet Mask:255.255.255.0
> 
> Router:192.168.0.1
> 
> Configure IPv6: Automatically
> 
Marcus
Marcus Harris
P.O. Box 7135
Marcus Harris
Shenton Park
Western Australia 6008
Australia
Cryptodome Pty Ltd
cryptodo...@me.com
Mob: +61 (0) 417965618





On 15/05/2013, at 2:34 PM, Ronda Brown <ro...@mac.com> wrote:

> Hi Marcus,
> 
> I replied to your post Re: Problem with network on Mon. 13th May.
> 
> Check you are using DHCP in System Preferences > Network 
> Select  Ethernet (which is your connection)
> Configure IP4: Using DHCP
> 
> Then click on Advanced  > TCP/IP
> What values are shown for the following please.
> 
> Configure IPv4:
> 
> IPv4 Address:
> 
> Subnet Mask:
> 
> Router:
> 
> Configure IPv6: Automatically
> 
> 
> Cheers,
> Ronni 
> 
> Sent from Ronni's iPad4
> 
> On 15/05/2013, at 1:41 PM, Marcus F Harris <cryptodo...@me.com> wrote:
> 
>>> Hello,
>> 
>>> Maybe someone has had this problem before but I haven't seen the advice, so 
>>> I would like some guidance please.
>> 
>>> I am receiving this message every afternoon. 
>>> I am connected to the Netgear modem by ethernet cable, never by wifi. 
>> 
>>> Often the message corresponds to a disturbance in the modem, which requires 
>>> me to restart it.
>>> 
>>> The whole issue started about 6 weeks ago, but I cannot figure out the 
>>> basis of the problem, so help please.
>>> 
>>> 
>>> Error message Reads 
>>> "Another device on the network is using your computer's IP address 
>>> (192.168.0.2)
>>> Try connecting again later. (YES THIS WORKS) If you continue to have 
>>> problems change the computer's IP address or of the IP on the other 
>>> device.(SO, HOW DO I KNOW WHAT THE OTHER DEVICE WOULD BE?)"
>>> Anyway I'd like to confirm that this is not due to some neighbour using my 
>>> iMac remotely.
>>> 
>>> iMac 27 Late 2009; 3.06 Intel dual core; 8GB 1067Mhz DDR3; ATI Radeon HD 
>>> 4670 256 Mb; OSX 10.8.3 (12D78)
>>> 
>>> Cheers
>>> Marcus
>>> Marcus Harris
>>> P.O. Box 7135
>>> Marcus Harris
>>> Shenton Park
>>> Western Australia 6008
>>> Australia
>>> Cryptodome Pty Ltd
>>> cryptodo...@me.com
>>> Mob: +61 (0) 417965618
>> 
>> Marcus
>> Marcus Harris
>> P.O. Box 7135
>> Marcus Harris
>> Shenton Park
>> Western Australia 6008
>> Australia
>> Cryptodome Pty Ltd
>> cryptodo...@me.com
>> Mob: +61 (0) 417965618
>> 
>> 
>> 
>> 
>> 
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