I have Archer C6 v2 running as a router together with Deco M5 system for Wifi.
I observe instability with WAN connction.
I am using Dynamic IP and from time to time I just got lost connection.
Sometimes running whole week with zero loss, sometimes lossing connection every 5 min.
ISP claim no disconnection for their optic PON unit, so has to be router problem.
I replace for while with old Tenda router and I did not observe any disconnection.
Looks like Archer having some troubles.
Could IGMP causing it?
I tried to switch off IGMP proxy, which was enabled by default and so far holding, but not sure, that was this.