Connection Issue and DC Issues

Hi, I seem to be running into a problem with my connection to the servers. My latency lately has rocketed from running normally 100-200ms, to around 1500-1800ms. I have checked on my internet, and that doesn't seem to be the issue. Is there maybe something wrong with a command somewhere in the games system file? Maybe I just need to reinstall? I have even tried taking my laptop and running it with a cable into my modem in my room. The instant and fast connection doesn't seem to fix the issue. Part of this as as well, that I not only get DC'ed, I also frequently get game crashes. The whole game will crash and it will bring up a system thing that wants to send an error.

Any help would be much appreciated.