"Connecting to the local server"..fails

Your error message suggests that GlassWire.exe, the main window for GlassWire, is unable to communicate to the GlassWire services.

I know how frustrating problems like this are so I searched this forum for similar issues. You might like to try the following options that have helped to sort out similar problems for other users including myself.

Is GlassWire tray icon visible?

Do you have a GlassWire icon visible in your system tray (also called the notification area) at the righthand end of the task bar? If you do, then try restarting GlassWire

Is the GlassWire Control Service running?

If GlassWire still can’t connect then you can run Windows Task Manager to see if the GlassWire services are running and using CPU:

There are two GlassWire services that should be running:

  • GlassWire Computer Idle Monitor (GWIdlMon.exe)
  • GlassWire Control Service (GWCtlSrv.exe)

Restart the GlassWire Control Service

If the GlassWire Control Service won’t run then maybe try to restart it:

Is the Windows Firewall BFE service running?

If the GlassWire Control Service still won’t run then maybe check to see if the Windows Firewall Base Filtering Engine (BFE) is running: