# CS2 Server Won't Start – srcds, GSLT Token & Port 27015

Counter-Strike 2 server won't start? Steam game server token, srcds, port 27015, missing map – CS2 dedicated server troubleshooting.

**Quick answer:** CS2 won't start: **check GSLT token** (+sv_setsteamaccount), **map exists**, open port **27015 TCP/UDP** and update via SteamCMD.

**If you landed here:** srcds crashes on start, "Invalid Steam token", map error or restart loop in panel.

## Related

- [CS2 won't connect](/en/gameserver/cs2/server-verbindet-nicht)
- [CS2 server lagging](/en/gameserver/cs2/server-laggt)
- [Firewall ports](/en/root-v-server/firewall-ports)
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