Hi We have taken over a new site that has a new SBS2008 SP2 server (IBM 3650 Dual QC 2.4Ghz 16 GB memory ) Fully patched and all MS updates installed including rollup 5. We are experiencing a problem of the server becoming unresponsive. This can happen several times through the day or not for several days. We have run the SBS2008 best practices analyzer and affected all fixes including "fix my network" which solved some IP6 issues even though IP6 was enabled. There is no BSOD so there is no MSdump to analyze. MS Logs only show some Dcom 1009 events but nothing to do with the server going down. (infact there is usually a gap in the logs untils the server is restarted via Power off or IBM IMM console power off. We have tried scheduling server restarts but this had no affect. IBM have checked out all the IBM DSA log file and state that there apperas to be no hardware failure.
I have been fight ing problem for several weeks now and hate to say this but I'm stumped. Any and all help appreciated.