Since this afternoon while I was playing World of Warcraft I suddenly had my latency increase from 30-90 to 1200-2000. Nothing I can think of atm that I did just before that could have caused this issue, other than the fact I got a new GFX card installed.
I also connect very slowly to any website, yet my up- and download speeds remain the same.
I had a Trojan on my computer last week, which was supposed to be deleted. This trojan came with the most annoying Anti-Virus program called VirusProtect 3.9 (not exactly sure on the name, but has to be close) which I was able to remove by using SmitFraudFix. However, I did notice that my AVG Free Edition found another 'Trojan.Zlob' after I had 'fixed it' (or so I thought perhaps) and I quarantined it. This trojan was also found on a different computer sharing the same connection (which also suffers from the same latency issue).
Now, I called my ISP today since I figured it might be an issue on their side. They asked me for my Cable Modem's MAC ID, which they used to try to connect to said modem. When they did they got an error message saying they could not locate my modem and they would send a technician to check it sometime this week (typical).
They also thold me it might fix itself, which I highly doubt after 12 hours of troubleshooting on the web checking ports etc, and not noticing any improvement in latency at any point in-game or otherwise. According to many different portscanners on the web all my ports are closed, and therefore safe. No infections have been found by a variety of scanners (which I distrust highly due to bad experiences).
If you would require any more info about my hardware or otherwise, please do not hesitate to inform me of this as I use my computer for my job. And if possible also on how to do it, since I am very unexperienced when it comes to these matters.
Any help at all would be greatly appreciated.
PS: I live in Belgium if that makes any difference.