Connectivity problems can range from latency and packet loss to an inability to connect to another device or the internet. Depending on the symptoms, the problem could originate from firewall rules, authentication problems, access control rules, routing issues, network instability, and misconfigurations. The following topics cover some of the more common connectivity issues in a Tailscale network (known as a tailnet).

Can't connect to internet
Can't connect to other tailnet devices
Can't connect to local area network (LAN)
Poor performance with internet connections
Poor performance between tailnet devices
Can't resolve domain names

For general network troubleshooting (that is, not specific to Tailscale), refer to Basic network troubleshooting.

Last updated Nov 14, 2025