Various issues when trying to join DarkRP server

Hi!

This post follows along from a now-closed post at this link. PLEASE READ POST BEFORE CONTINUING http://forum.facepunch.com/showthread.php?t=1486766&p=48783280#post48783280

Basically, I built a new PC which was more than capable of playing GMod only to find out I couldn’t connect to my favourite server, a feat that my much weaker laptop was capable of. I had no idea why it would, the post details everything I did, but still no one knew any working solution to the problem. This has been driving me crazy, as GMod is the most played game I have in my Steam library. I really need this resolved fast.

Thank you for any help you can offer.