I get a 'host is unreachable' error on iOS

There are two possible workarounds for this issue.

1

Check if the Local Network permission is granted

Open the system Settings, find Termius, and make sure Local Network is enabled. For more details, see I can't connect to a local device on iOS or macOS.

Try connecting again. If you still get the same error, continue to the next step.

2

Switch to the Experimental Connection Process

Open Termius → Profile → Settings. In the Sessions section, enable Experimental Connection Process.

This uses a different hostname resolution process, which may resolve the issue.