Hello I use OpenWrt for several years now. I have one WDR3600 (let's call it R) as my main router. 4 WR841N as Dumb APs and a 16 port unmanaged gigabit port switch are connected to R.
However since a month all of R LEDs will start blinking in the same frequency until I restart It. Clients trying to use the network(Wireless or Cable) wont get an ip address and become unable to use the network, but they will detect that there Is a network connection. Clients which already had an ip address wont be able to use the network aswell. There are no errors in the system and kernel logs so I don't know where to start. Are there other logs I should check? This happens like 2-3 times a week.
However there were two changes that happened to the network:
- I installed a new WR841(my 4th) with a new cable with a new network socket. (Could wrong wiring cause this issue, usually all access point work with good speed, pings with no packet loss)
- The power adapter for my cable modem broke and I replaced It
I tried to use my old WR1043ND but It results in the same problem.
I use OpenWrt 18.06, sqm(with all default), 7 static routes, stubby(as dns resolver), ssh is enabled via lan, one firewall rule to block traffic(lan -> wan) from one mac address.