I have a very strange issue with this dusty old router (TP-Link WR-1043ND v2.1) that I installed OpenWRT on.
When I turn on my PC, I can access google and only some websites. I can log into steam, but not view the steam store. The router config page says Connection Refused. I can ping the router.
However, after some time, everything works.
All other devices in my network have no problems.
What could be the problem? Is it an antivirus/firewall issue on my pc?