Hi Juan,
take a look here: Error env:Receiver 100000008 License does not e... | SCN
and here: https://scn.sap.com/thread/3363849
you may also try to restart TAO service on License Server machine, and as you changed DNS verify B1if can resolve your License Server. Flush DNS cache with ipconfig /flushdns
and clear ARP table arp -d *
hope this helps.
Regards,
Pierre