Adobe CC apps won't start unless network cable is plugged out

Having a strange issue on all our video editing PC's this morning - when you launch any of the apps, it looks like it loads up, but then gets "stuck" and eventually crashes. I discovered through trail-and-error that by unplugging the network cable, applications start up and will work. When you plug the network cable back in while the app is running, it still works for a while, but then just becomes unresponsive. This is affecting all PC's in my department and I need urgent assitance if anyone is able to help, or have had similar issues. Thank you.