SP2 and slow network

[ASM]

I have a workgroup network at work running 6 workstation running 4 ME and 2 XP and I recently had to re install XP pro on the server machine and I downloaded SP2 and now my network is horrible slow as well as the workstations too. Could this had been due to SP2. Before the crash the network was ok.

 

[Guest]

With SP2 open control-panel,firewall,exceptions,add program,add IE,then
as needed click on "change scope",edit if needed.

 

[ASM]

how will that help?

With SP2 open control-panel,firewall,exceptions,add program,add IE,then
as needed click on "change scope",edit if needed.