"No internet connection" persistent message (Personal Home Account)

Creative Cloud is continually telling me that I am not connected to the internet (despite being able to update the app itself and inform me there are app updates available). I have spent hours following every recommended solution from Adobe and these forums and nothing works - still "no internet connection" in CC Desktop. All CC apps have been whitelisted in Windows Firewall; Graphics card driver has been updated; Adobe's Limited Access Repair downloaded and run with no result; and manually removed host docs - nothing works, so I'm totally at a loss.  As a result, I am not able to update CC apps, nor uninstall any CC apps, or even uninstall and reinstall Creative Cloud as the unremoveable apps require them, so I'm told. This is ridiculous for a premium paid service! Any help would be greatly appreciated.