I’ve got one machine when trying to program XStick3 that I get “Function Not Found In XCTU” under the function when adding the radio. When trying to update the firmware I get “Error 503: Login as USER first”. This is only happening on one machine (in production) and not on my work laptop. I’ve updated and re-installed XCTU and it didn’t seem to fix the issue. Anyone else had luck with this issue?
Try the “Check radio firmware library” again. I show that it is working fine. If you can get this to work on your PC but not on the other system, then it is time to talk to the local IT as there may be functions within the user profile that is preventing it from working.