Serious ping spikes and disconnects while gaming

I did have this problem a little while ago but I fixed it and I forgot how I did.
Earlier today I was clearing some old games out and accidentally removed a program (RTLsetup) and it got rid of my LAN connection, I restarted my computer and the connection came back, along with the problem.

Usually what happens is I am playing a game (counter strike or WoW) and for 5-10 mins I'm ok, but then my ping shoots up and i get terrible lag spikes or disconnects and it's VERY frustrating. If anyone knows how I can fix this please help!
If I recall I did something with either the network connections, regedit or msconfig. -.-
I am through a router

OS:Windows xp home ed.
Router: Netgear RP114
Ethernet card: Realtek RTL8139/810x

if you need anything else just let me know.
Thank you.

 

RTLsetup was probably the LAN drivers for your NIC. Removing them caused Windows to revert to generic drivers that just don't work as well.

Go here and download the latest driver. The top listed "Auto installatio program" should work.

 

Yea I've already tried that, as well as disabling wireless zero config in msconfig.
Still nothing