Try uninstalling SP2. What do you need it for? So many people blindly update not knowing what they're updating to. It was not designed for the lttle peron but big networks. And it's caused them big headaches.

Did you try the various fixes for SP2? try the sticky at the top if the connections section. That covers about 70% of fixes that've worked.
Other than that try forcing ip: Force IP instructions & sample image

Since you're connecting from a uni. all I can suggest is: A well set-up LW can start to automatically continue its dwnlding after it's settled down perhaps 2 out of 3 times you open LW. Optimising LW & Maximising Uplds & Dwnlds A (1st post only) & also Part B which is even better & last & least are search & dwnld hints.