Troubleshooting
Troubleshooting Guide
Quick Fix Table
| Problem | Possible Cause | Solution |
|---|---|---|
| Cannot login | Network/Account issue | Check connection, try alternative login |
| Device offline | Service not running | sudo systemctl start tailscaled |
| Cannot ping | Firewall blocking | Check firewall rules, allow tailscale0 |
| P2P fails | Strict NAT | Open UDP port 41641 |
| Slow speed | Using DERP relay | Check network, try different port |
| DNS fails | MagicDNS conflict | tailscale set --accept-dns=false |