Hello, I have RB 750, connected to internet, with no LAN traffic i see lots of https traffic, it hits up to 10mb in both directions. What could this be? i tried to reset the router but the issue is still there.
Netinstall is the only foolproof way to resolve a hacked router.
You could go through the configuration and remove what appears suspicious (proxies and such), but it is nearly impossible to say with 100% certainty that the router is no longer compromised. Perhaps there is a hidden script that runs each time the router boots. Perhaps a firewall rule is ineffective due to some hidden code.