Right-click > Properties > IPv4 > Properties > Advanced .
A: Your router’s NAT table is full. Reboot your router weekly. Also, disable "Energy Efficient Ethernet" in your network card properties. radmin vpn relay tcp fix work
If one user can forward ports:
Right-click > Properties > Internet Protocol Version 4 (TCP/IPv4) > Properties . Click Advanced and uncheck Automatic Metric . Right-click > Properties > IPv4 > Properties > Advanced
If you are hosting a game server (Minecraft, Gmod, etc.): radmin vpn relay tcp fix work