To replace one of my two RE210, I bought a few weeks ago an Archer C80. I use it in AP mode with a 1 Gb Ethernet link to my ISP main router. This ISP main router is a Livebox provided by Orange, a French Telco.
Both 2.4 Ghz and 5 Ghz WiFi bands are enable in my Archer C80 (Mu-Mimo enable also).
I've seen a weird issue. When for the 2.4 Ghz band, channel width is not set to Auto (i.e forced to 20 Mhz or 40 Mhz), from times to times, the Livebox freezes (for a couple of seconds to many many more). You can observe this issue using the ping utility. The Livebox response time is below 1 ms but suddenly go over 50, 100 ms or more. Sometimes, the Livebox doesn't answer at all. The link is broken. Two times, I had to reboot the Livebox.
Even it seems to work well with channel width set to auto (like RE210 in fact works), do you have an explanation about the root cause.
Thanks in advance