If you're on a windows machine that have both Adobe Acrobat Pro DC and Adobe Reader DC installed under the same current user accoutn, uninstall Adobe Reader completely and check if that helps.
If you only have Acrobat Pro, and assuming is already updated to the latest version update, what happens if you click on "Help" --->>> "Repair Installation"?
Conversely, what happens if you force an uninstall/reinstall?
It is not recommended to disable the AcroCEF service. However, the case may be that this service is tightly integrated tosome Google Chrome's framework, and it also interacts with the AcroServicesUpdater service executable.
My best guess is to block the service at the firewall level.
Create an InBound/OutBound rule at the firewall level, just for troubleshooting purposes, and see if this improves the issue.
That said, does the computer shows the same symptom if you're working in Acrobat completely offline?