# CS2 Server Won't Connect – Connection Failed & Server Browser

CS2 server won't connect? Connection failed, server not in list, port 27015, firewall, GSLT – Counter-Strike 2 dedicated server connection troubleshooting.

**Quick answer:** CS2 connection issues: open **port 27015 TCP+UDP**, check **GSLT + sv_setsteamaccount** and test direct connect `connect IP:27015`.

**If you landed here:** "Connection failed", timeout, server not in community list or LAN only.

## Related

- [CS2 won't start](/en/gameserver/cs2/server-startet-nicht)
- [CS2 lagging](/en/gameserver/cs2/server-laggt)
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