Question powerlan and Wifi sporadically loses internet

Feb 27, 2023
Hey there.

for years now my home network behaves strange and I dont know where to start to debug it.
There is a Fritzbox 4970 as modem/router from which devices are connected via Wifi and TPLink Powerlan (connected to Fritzbox with Ethernet).
Sporadically multiple times a day any devices (does not matter if connected via wifi or powerlan) lose the internet connection while still being connected to the wifi or lan. after maybe 30sec everything works again. the fritzbox does not report internet issues, i think its a home network problem.

is there a detailed log in the fritzbox to check out any issues? could the powerlan cause interference for the wifi?

thanks for any tips!