Connection problems

[walru5]

Hi,
Recently i have started to mine using GUIminer and have not been able to start mining due to connection problems. I have tried many different pools and still have the same problems and I know i have been entering my account information right. I was wondering if anyone had had these same problems and/or if they know how to fix it.
Thanks!

[noviapriani]

Open Network Diagnostics by right-clicking the network icon in the notification area, and then clicking Diagnose and repair.