Hi There,
I'm having the same issue. Surely something has changed either on the iOS or on the RD Desktop App, but as end user we have no way to know what has changed. In any case, the result is that now the iPad does not connect to PCs on a WiFi that does not have internet. I have tested following scenarios:
RD app on iPad connected to WiFi WITH Internet: App works and connect to Remote Desktops
RD app on iPad connected to WiFi WITHOUT Internet: App DOES NOT work
I did play with the Router and DNS settings and if I manually entered this info into the WiFi connection, I'm able to have the RD app connect to the PCs. It seems to me that it is a routing issue as either the App or iOS is not able to route the packets properly according to the subnet/LAN.
Surely Microsoft can dedicate one of their finest network engineers/developers to troubleshoot this issue and give us a product that works...
Fingers crossed...