Thanks for the input. I'm pretty sure the modem is ok thru all this since the wifi remains good. It only messes with my wired connections since I have 3 win10 pc's with a static ip address I assigned...

Hey For some reason my Deco M5 unit has been randomly changing the Default Gateway number from 192.168.xxx.xxx to 172.xxx.xxx.xxx for no apparent reason. It's probably happend 3 or 4 times including...