We have an issue we have been dealing with on and off for about 4 months. We have a 5 site system using voicemail pro, installed about 3 years ago. The system is running 6.0(18) firmware. The issue is the voicemail connection is lost and we have to restart the server to get it back each time. When you look at the "services" it is always still "Running" but its not linked. Even if you start and stop the services, it wont resync until the server is rebooted. It was on a stand alone PC for about the first 18 months when the issue started. We were running Vista on server. We did a fresh install using XP on the same machine and issue still there. So then we moved the voicemail to a new machine (a virtual server)at a different SITE even, fresh install, etc. and it was fine for about 3 weeks, then it started acting up again. We have checked everything on the server we can think of. I will look in system status and the error I see is just "voicemail pro connection failure". I will sometimes see an error for "ports unavailable" or stuff like this but not always. We have checked the connection between this site and the voicemail over the MPLS and there is never a loss of connection. It happens at random times anywhere from like 1pm in the afternoon to 3 am in the morning. Sometimes during heavy call traffic, sometimes no traffic. It will do this 10 times in one day for a couple days, and then for a few days nothing. Then we got no issues for all of last week! The license is valid in the IPO. We have worked with their IT guy very closely and we are all at our wits end on this. Our programmer has done about 200 IPO installs including several dozen VM pro, and never seen this issue. So the only thing in common that has not been changed from the first server to now is the specific control unit the license is housed on, the voicemail license, the IP address it has, and the MPLS network they have. The only thing we can think of it the firmware? maybe update to latest? or switch out the control unit just to rule that out? or get the license swapped with Avaya? any other ideas anyone??????