SBS2011 Std w/Exchange
Event viewer is logging event 1035 for MsiInstaller 15-20 times per second. As I scroll through the events they are different products, Exchange, SQL, SharePoint, ...
Started having to look at event viewer as internet speed drops off periodically during day from 30+mbs to 1-2mbs. I have a program logging internet speed every 15 minutes and can see when it happens. I don't find anything else specific in the event viewer.
I have another pc external to the network, public facing off the same cable router and and speeds stay relatively stable at the same times when the internal monitor logs a slow internet connection.
The users are complaining big time.