This is an attempt to save everyone the frustration we encountered. We recently got a new router at our office which lined up nicely with an Emlid Flow update. Possibly leading me down a rabbit hole.
We were able to connect to bluetooth and confirm the RS2s and RS3 were on the network but were unable to see them in the Emlid Flow app. We test things and move files around often in the office so this was a headache for sure.
Mobile hotspot worked still but nothing over network. The eventual fix was finding a setting in the new router titled “Wifi QoS (WMM)” which prioritizes certain types of data streams like audio and video (netflix anyone?).
Disabling this brought everything back to normal and well functioning. over the network. Hope this helps someone else!
Thanks to Kornel Nemeti at Emlid for offering a bunch of good troubleshooting ideas. Here is a screen grab of the setting.