You may wish to consider the discussion here - iPad Roon Remote Loosing Connection Every 30 sec [Resolved] - and look at the firewall and remote settings within windows, the last windows update may have had a impact on your network configuration.
You may wish to consider the discussion here - iPad Roon Remote Loosing Connection Every 30 sec [Resolved] - and look at the firewall and remote settings within windows, the last windows update may have had a impact on your network configuration.