This issue may occur where users have been switched from using node-locked to concurrent MapInfo licences.

Although the served version of MapInfo is installed, when MapInfo is run the dialog for activation asks for the serial number and access code as for a node-locked licence, instead of the licence server name and port number.

This issue is caused by registry keys in HKEY_USERS pointing to the node-locked licence that are conflicting with registry keys in HKEY_LOCAL_MACHINE pointing to the concurrent licence.

To fix this issue:

1. Ensure that if a node-locked licence was activated it has been transferred back to Pitney Bowes, then close MapInfo.
2. Open Registry Editor and go to Edit > Find and search for MINWES.
3. Back up the registry using File > Export.
4. Remove the folder in HKEY_USERS that contains this key for the affected version e.g. HKEY_USERS\{UserID}\Software\MapInfo\MapInfo\Professional\1250.
5. Run MapInfo to check it is now using the concurrent licence.