Recently, the "File -> Add Data -> Add Basemap" feature of my ArcMap 10.2.2 installation has stopped working with the error "The underlying connection was closed: An unexpected error occurred on a send". This is quite confusing as the rest of the application appears to be working fine, and the "ESRI ARCGIS Test Connection" is working properly. Our IT department reports that there are no firewall or routing issues/blocks, and that no changes have been made in 2022 that should affect this application / computer.
I know this is a very old unsupported version, and ESRI Support has said to upgrade. I respect that answer, but will the newer versions (10.6. or 10.8) work? How do I know this problem is version related and not environment related?
Any help or guidance is greatly appreciated.