Computer Help and Support

(Hopefully it doesn't erase the log when it resets.)

Also see if there is a way to monitor the amount of network data going through the router. Watch it and connect the Samsung S20 to see if it maxes out prior to rebooting.

You might also try disconnecting all other devices from the router temporarily as a test and just connect the Samsung S20 to verify it is the phone, and the phone alone, causing the problem.

Does the phone give any info on its connection status during the attempt? Is it set to get an address from the network? If so, are there enough address available from the network?

I would try the Samsung S20 on another wireless network to see what happens (of course you probably want to be friends with the owner of the other WiFi network and inform them what exactly you are testing). Or just borrow another router for troubleshooting (if possible).

Kind of a weird problem. I don't know anything about the Android OS, if I did then I might be more helpful.