I have a WZR-HP-G300NH router with firmware version "Ver.1.74 (R2.06/B1.07)" This router has been operating flawlessly, for several months. All of my wireless devices report maximum WiFi signal strength (I live in a rather small flat). I measure signal strength by observing the number of "bars" displayed on the WiFi controls of my devices. These devices include an iPod Touch, a Windows notebook computer, and an Apple Macintosh Mini. The first two devices are 802-11-N, the Mini is 802-11-G.
Recently, I have been having a recurring problem. The wireless signal srength drops to a level that is too low for my devices to use, unless I move the devices to within a few meters of the router.
I reboot the router via its web page user interface. This cures the problem: all my devices again report maximum signal strength.
I configure my router to choose a WiFi channel automatically. Twice, I have observed that the router was using channel 11 at the time of the problem. Once, I observed that the router switched to channel 8, after I rebooted.
I could collect more observations of channel usage, or I could try setting the channel number manually. However, I am not confident that this is the best way to debug this issue.
What should I do next? Thanks for any suggestions.
