Just updated to 2.26.1 beta firmware the RS2 and ReachView3 to 5.5
The RS2 wifi connectivity issue still is present. On restart it went by default hotspot mode even though I had configured the RS2 wifi to connect to my CLARO wifi router network ok.
I reconnected manually again to my wifi router network the RS2 and also the smartphone and was able to measure some points only wifi (the BT is unresponsive with my HUAWEI P30 PRO OS10 even though it indicates it is paired to the RS2)
I turned of both the RS2 and the app. Restarted RS2 and ReachView3 and again the RS2 went to hotspot mode 3 meters away of the wifi router. The problem seems to be that the RS2 by default goes to hotspot before connecting to saved wifi networks nearby or connects to the smartphone data via bluetooth connection (which should be the primary connection for surveying)
Hope it helps to find and solve this issue.