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Making use of the router's 5GHz band

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ikon

Most routers today also support Auto channel selecting, and I say use it. I think my neighbor tinkers with his wirless router because I will briefly experience situations where my network SSID get's really sporadic. I simple reboot of the router, a new channel, and my problem seems to be solved.

 

Just a small precaution: many routers, particularly the consumer variety (but by no means restricted to consumer), have rather poor auto-channel-selection algorithms. They often cause brief service interruptions while switching channels. This can be noticed as stuttering of video streams or, in even worse cases, dropped connections.

 

I'm surprised that you have to reboot your router to get auto-channel-selection to work. In most routers it's designed to work on-the-fly. It constantly monitors the Received Signal Quality, usually by looking the the SINADR (Signal to Noise and Distortion Ratio). When it detects that the quality has dropped below a certain level, it will initiate an auto-channel-selection cycle, to try to find another channel. The idea is that the quality is so poor already that a brief outage won't cause any worse issues than are already present. But that's where the problem lies. Many routers are overly sensitive and initiate auto-channel-select cycles when they're not really necessary, causing service interruptions.

 

I can tell you that, at work, I completely stopped using auto-channel-select. It caused more problems than it was worth. I settled on monitoring the wireless units and getting email alerts when a SINADR dropped too low. I would then pick an off-hours time to initiate a sweep of the frequency band using the routers' built-in Site Survey tool (many routers, even consumer ones, have this). I would then pick the channel with the least amount of interference and change the routers to use it. Often times, this would result in better performance than was present for some time before the change (because the interference had been building up gradually over time).

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