I'm having the same problem . . . hope they resolve this soon!
It's most likely due to server issues so I wouldn't worry. You are using Vista SP2 I trust and by the way you should be using IE9. Things may behave better if that was up to date as McAfee relies on IE.
If it continues contact Technical Support.
I've been having the same problem for several days: started Aug18. The errors are: McAfee Update Manager Service: Stopped Working (two episodes on Aug18) and McAfee Update Manager Service: Stopped Working (Aug19). On each occasion, it slams my internet connection (actually all network connections) closed. My only way out is to do a system restore. Very annoying!
Problem Event Name: APPCRASH
Application Name: mcshield.exe
Application Version: 188.8.131.527
Application Timestamp: 4ee2c0e2
Fault Module Name: KERNELBASE.dll
Fault Module Version: 6.1.7601.17651
Fault Module Timestamp: 4e21213c
Exception Code: c0000002
Exception Offset: 000000000000cacd
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1033
Files that help describe the problem
There is a problem with a recent update to SecurityCenter and, if DAT 6809 doesn't help, uninstall, run MCPR cleanup tool, reboot and reinstall from you rtonline account. System Restore only confuses the software regarding time and so needs to be updated immediately anyway.
That cured my issues.
I just tried to update to dat version 6809 it looked like it was searching for something but then I got an error message: An error has occurred.
Do I just wait for McAffee to correct this issue or should I do something on my own?
Read that article 2 posts back...follow the last suggestion but I would add to it, uninstall first in the normal way, before running the MCPR tool.
If you simply run the tool then your online account will think you are adding another mmachine when you go to download again.
I've posted an announcement at the top of the main home section about this and can only apologise on McAfee's behalf.
Peter: I'm uninstalling now. As a long-time McAfee customer, I remember when McAfee was a very solid product. Of course, back then, all of the programming was done in the United States. From what I understand, almost all of the product work is now done in India.