SWYH showing no streaming URI

Had SWYH working fine on Windows 10 a few days ago.

Suddenly, it no longer displays a URI when choosing HTTP streaming.

There are also no devices appearing in the ‘Stream to’ option anymore.

As far as I know I’ve changed nothing on my PC.
I can use it from my laptop no problem.

Anyone have any ideas why this could be?

Uninstalling and reinstalling the application has no effect.