Guild Wars 2

I recently hooked up a new keyboard to my computer and there are some weird restrictions with the keys. I noticed when playing, I am unable to jump whenever I am running diagonally, backwards and forwards. It is quite annoying. Especially with jumping puzzles. Specifically when I am holding down a combination of two keys: W&E, W&Q, S&E, and S&Q. I tested this out of the game too. I tried holding down those keys and press space bar. And still, only when I hold down those keys the space bar doesn’t work.
Anyone know anything about this or have similar issues?

https://www.microsoft.com/appliedsciences/antighostingexplained.mspx
https://en.wikipedia.org/wiki/Rollover_

Ah that helped a lot. Thank you very much.