Run licenseadmin on the Pro license server machine. It will tell you which machines are supposed to have which sequence numbers.
In licenseadmin you can delete the user for the sequence number that is conflicting. Next go to the two machines that were conflicting and rerun configwizard by BROWSING to the TCP5_USER share on the licenseadmin machine then for 5.x into TCP-Pro and run configwizard.exe choosing only to get a sequence number. Don't forget to put something in the comment field. (for 4.4 you go into TCP4-32 and run configwizard44.exe).
When you have done this on the two conflicting machines you will be able to go back into licenseadmin and see that the two machines have gotten unique sequence numbers at which point your trouble should be over.