When the server of Warhammer 40k: Space Marine II is unavailable, first check whether the network connection is stable. You can restart the router. Confirm whether the game is under maintenance. If not, try to close the program that occupies network resources. You can also use network optimization tools to improve network conditions to solve the problem of server unavailability.

Server unavailable solution

1. Use an accelerator. The game server is not in the country, so an accelerator is needed to reduce network fluctuations and maintain network stability.

2. It may be a problem with the official game server. You can only enter the game normally after waiting for the official server to be repaired.

3. Modify the DNS of the computer's network and change the DNS to 8.8.8.8, which is the public DNS provided by Google, to reduce network latency.

4. When the network cannot be connected, it is recommended that players reset the network. Resetting the network will increase the network speed and reduce delays.