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Forum Discussion
coolwifi
Jan 21, 2026Luminary
RS500 router keeps falling back to 80 Mhz bandwidth from 160 Mhz
I have set up my RS500 router with channel 44 and up to 5.8 Gbps speed in the 5 Ghz band. The router stays on 160 MHz bandwidth for a day or two before falling back to the 80 MHz bandwidth and never ...
plemans
Jan 21, 2026Guru - Experienced User
Biggest downfall to 160hz wide is the DFS. Thats one of the main benefits to 6ghz is the move to wider channels without interference. You might be in an area where 160hz isn't possible because of to many DFS signals. I'd just try setting the channel width to 80hz. It'll have plenty of bandwidth for pretty much anything you can throw at it with 80hz wide channels.
- coolwifiJan 21, 2026Luminary
I agree. I don't lose much with the 80 Mhz bandwidth, just that I get more speeds in the 5 Ghz 160 Mhz bandwidth in my phone as the range of the 6 Ghz band is much shorter. It would be nice if the router included the bandwidth drop in the logs when DFS interference is detected.
- plemansJan 21, 2026Guru - Experienced User
Most people don't realize they don't need 800mbps on their devices. Streaming 4k only takes 25-50mbps on average. So unless you downloading massive files or moving datasets, going from 100mbps to 800mpbs won't make much difference. Its also why the vast majority of tv's don't come with even gigabit ports. Just 100mbps ports.
- coolwifiJan 21, 2026Luminary
Yes I don't need that much speed in my phone. Just noticed that when I reboot, the 5 Ghz channel had changed to 40 with 80 Mhz bandwidth although it was manually set to 44 by me, looks like there's some interference in channel 44 from neighboring wifi. The auto channel in the 5 Ghz band selection always picks up the DFS channel 100 which has significantly lower transmit power than the non DFS channels.