Today I tried my first online row with my new PM5. Below is the error message I received:

Current firmware is the latest 166 version. I am running Rowpro 4.3. I never had trouble with online rowing with my current computer and PM3. I did try a hard reset of the PM5 with no change.
I have contacted Rowpro but have not heard back. I wonder if anyone here has any thoughts or suggestion.