Hi We have updated our 3cx phone system from v98 to v10 without problems. But we have two customers with the same problem : uninstall v9, install v10, restore PBX settings, and unable to log in admin console : "incorrect password". In the same time, in the windows event viewer we see that IPBX has banned the IP of all the phones for too many failed authentication !! I am sure of the password of course, and if I uninstall V10 and re-install V9, no problem to log in with the same backup restored ... Anyone could help ??