After 2 hours use, my friend randomly starts lagging and disconnects from the session. When he reconnects back, the direct tunnel is gone. I don't know what changed that we lost our direct connection. The relayed tunnel are on pings of 198-200ms and is making a big difference. Any help on how to achieve direct tunneling again would be great.
We tried turning off the firewall/antivirus, but it didn't work.
Relay connection is not an error.Its one of Radmin VPN connection type that takes place when direct connection is not possible.
There are a lot of factors like many routers between Radmin VPN and Internet, NATs, firewalls, network topology, router settings, closed ports and etc.
Here some ways to avoid this connection type, but they dont guarantee non relayed connection:
1. Both PCs (local and remote) are placed in the same network.
2. One of PC has direct IP address.
3. Routers with direct IP have the following NAT settings: one NAT, Full Cone NAT,Address-Restricted cone NAT, Restricted cone NAT, Port-Restricted cone NAT