HiCan you check if the OS is different (XP, Win7 ?)Is it happening even if users try on different Systems ?Regards..

HiI don't think Domino is supported as "Director Server".Regards..

HiIf it is CUE, then it is known issueSubscriber trying to login to their  account get an error Mailbox in Use , Fixed CSCtl04193Mon, 01/31/2011 -  14:27Symptom: Subscriber trying to login to their account  and put their PIN they get an error stating...