Thread: Why are my speeds so slow??

You said you changed ISP, which most likely means you have a different router. As someone else mentioned, check port forward.

But, I know, depending on your tech level, you may want an easier way to tell if the router is a problem at all. So, instead of doing port forward, which sometimes doesn't work right for some routers because they have some additional settings that need to be tweaked, you should just use DMZ.

Generally, using DMZ is not a good idea because it means you are exposed to the internet directly. However, it is ok to do it just to test it temporarily. If you use DMZ and everything works fine, you know it's the router. If it's the router, time for some googling to understand your router and set things properly.

If it doesn't work well even with DMZ, then you know it's NOT the router. That leaves 2 possibilities: Your computer or ISP. Let's not worry about ISP because that's less likely the case and if it is, you can't do anything about it anyway.

If it's your computer, the first thing you want to do is to make sure your network card is working fine. Install the latest driver (go to the manufacturer's site). Run some ping test in command line to see if any data is lost. Also, make sure that there aren't any possible DHCP conflict. Some routers have different rules, especially if you are reserving an IP address for your computer.

Secondly, make sure your firewall is letting Torrent through without restrictions. If you are using a commercial firewall, they sometimes have various rules that may need to be tweaked.

There are many more things you can check, but I should wait until you post your result with the solutions suggested here.