Roon Arc no longer connects in the in home Wi-Fi

Do you get a “Poor connection” message?

Poor Connection messages even on home wifi happen and can usually be fixed by resetting the ARC app from Home > Settings. Sometimes, an uninstall/reinstall of the ARC app is necessary.

However, you will lose any downloads in ARC in either case.

This seems to happen sometimes, e.g., after updating (but apparently not only):