Well.. The lag is back, but not AS bad as before. I've ruled out heat, other computers connected to the network, and software conflicts. We've had a fire burning for the past few days, so I thought it might have been the heat, but we aren't burning anything today. My computer is the only one using the connection, since the other computers are off. I've also shut off Windows defender and firewall, turned off resident protection in Spybot, etc. The only security programs running are Avira, and Comodo Firewall. It's only Runescape that lags too, my torrent speeds are fast, web pages load quickly, and so do video streams. Maybe the RAM limit increase would help, as soon as we can figure out where it is :P.