This board was created by a teamviewer user as a place for other users to help each other with their experience
Admin doesn't work for Teamviewer and cant delete or reset ID's.
Teamviewer ID's are generated through hardware identification and remain the same even if you uninstall and reinstall teamviewer.
make sure you have the latest version of teamviewer, have your restarted each system?
How are you entering the teamviewer ID's?
Are they saved in the "computers and contacts"?
I would delete them( right click/delete).
Uninstall teamviewer and reinstall with the latest version then re-enter the teamviewer IDs make sure you are entering the ID
without using any spaces..
You may need to submit a support ticket:
sometimes it just best to submit a ticket:
http://teamviewerforums.com/index.php?topic=1363.0support for the Free Version can sometimes take a bit, but they do provide help.
Let us know the resolution.