Here are a couple of ways you can try to solve this issue before renaming computers. Now in Device Manager, click on View and choose Show Hidden Devices.
(Think of it as a neighborhood watch where devices are noticing a problem down the street.
When completed, email validation snapshots bring one or more validation entries along with their email validation statuses.
Verifalia defines several different statuses, where every value signals a successful validation or a particular issue.
Well, you may also get this error even if no two computers on the network have the same name!
The problem could be caused by an old network adapter that is no longer present on the system.