I recently acquired the RS2. I have problems trying to obtain a fixed solution (only a few seconds then goes to FLOAT) when I connect my rover to a CORS station. I only use GPS and GLONASS corrections because is the only ones that the provider use. My goal is to connect the rs2 as a rover to a cors station using Carlson SURVPC.
try to install version 2.22.2. Should be OK. after reflash, connect to wifi but disable internet access (then you do not need to update to the latest version). In general, there should be an option to opt out of updates in Reachview. The next firmware version does not always work better.