Andresq wrote: > Hi Greg, > > Be careful there. The channels do overlap which means that if one device > uses ch 1 and the other ch 2 they both see each other as a high noise > source but do not recognise the other as a valid transmission. Therefore > they do not wait for the transmission to finish before transmitting them > self. Net result is a worse result for both parties in most cases. > As a picture says more than words have a look at > https://en.wikipedia.org/wiki/List_of_WLAN_channels. > This is why the advice is to only use channels 1,6,11 (14 is not usable > in Australia) and put competing devices onto the same channels still so > they recognise each other to make best use of the available capacity. > There are cases where it helps to cause interference, e.g. if a device > uses high bandwidth while having poor reception (e.g. mobile playing > video) it occupies the channel almost 100% not leaving much room for any > other user. Causing interference there means that that device will fail > to get a usable connection and therefore freeing the capacity. However > this backfires if your AP and clients don't have a fairly good reception > because the competing AP/clients will do the same to your clients/AP. > > Note that some of these use MACs/BSSIDs next to each other suggesting it > is the same access point and in this respect counting as a single user > only.
Hi Andresq, Thanks for the information. My experience may only be anecdotal but it seems to work for me (or my old wifi router/network, it could well be specific to my hardware?). When I reset my router I usually forget to change the channel. In the following days, I start getting severe rebuffering, so I change the channel on the router and problem goes away. This has happened 3 or 4 times over the years and occurs on my Squeezeboxes as well as RPI/pCP. Logic dictates that all my neighbours are not having trouble using duplicate channels, though there seems to be one that changes their channel. I live in a detached house in a battle axe, so I have 4 neighbours, I know one doesn't have a wifi modem, so the rest must have one and they must have APs on their mobiles. I can tell when they are home or have visitors by the increase or decrease of APs. regards Greg ------------------------------------------------------------------------ Greg Erskine's Profile: http://forums.slimdevices.com/member.php?userid=7403 View this thread: http://forums.slimdevices.com/showthread.php?t=106755 _______________________________________________ unix mailing list unix@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/unix
