Windows 7 too slow on network

Situation
You have a decent PC running windows 7 64, with 4 GB or more RAM.
All programs run fine but when you access the network drives, on windows 2003 server or? it just drags to almost a crawl

Fix
I made many changes before I just uninstalled Symantec End Point, and then just entered IP4 Static Ip. I think the static Ip did the trick