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TS profiles located in a central location
Notes ID file hosted on users personal “u” drive

I am having an issue with our 2 server ps4 farm whereby the server becomes unresponsive and stops accepting new connections. RDP to the server also becomes unusable, and the server needs to be rebooted before it will start accepting connections. There are no errors in the logs that suggest a problem, and taskman wont even open during these crashes so I cant tell if system resources are fully consumed. I have built a new server and added it to the farm, and only installed the notes client on it. The same problem eventually occurs, or at the very least logon times become a 3-4 minute process as it stalls at “checking credentials”before launching the app…RDP to the server is once again unusable. The original servers that hosted Notes no longer have an issue, so I am fairly confident that the issue surrounds notes.

I have also noticed a strange behavior with notes that may be related. Every so often a session goes to a disconnected state and the cpu usage for that process spikes to 50% or more causing a slow down on the server. As soon as the session is reset, the cpu returns to normal. This doesn’t happen with every disconnected session. At this same time any launch of notes results in a hung splash screen, and the user will need to run killnotes and try to launch the app again. It may take three or four attempts with this process to get lotus to launch properly.

Any help is greatly appreciated

Thanks!

1st issue : It seemed that Lotus notes sessions in the “disconnected” state were consuming 50-60% of the system resources, so two or three of these sessions would bring the server to a halt. This also happens when a user would leave a lotus session minimized or in the background. Never figured out what causes this behaviour, but I trimmed the timeout on disconnected sessions to 5 minutes, and clearing them out faster seems to have stablized the server somewhat

2nd issue: Checking credentials would hang, and cause long logon times. This was a random find…Found an article buried deep in google that suggested looking at a process by the name of mpnotify.exe. Link is below, but basically removing the npnotes entry in the reg fixed the problem instantly.

http://blogs.technet.com/instan/archive/2008/04/03/the-case-of-the-mysterious-2-minute-logon-delay.aspx