So in my apartment there are three Xbox Ones, two wireless and one directly connected to the router. No issues there...

For phones, my pc, and a roommates PC we have absolute garbage connections in the range of Kb/s.

What I don't understand is MY pc having issues as the current router is mine, and it didn't have issues in the last apartment and has only been used for about a year

I really don't know where to start but here is some specs:

Router: linksys N600 Modem: CISCO dpc3208 Provider charter Expected speeds: 30-60mb/s Actual: kb/s on computers, 17-20 on consoles on WiFi (distance from router here)

Speeds were even worse before I swapped from the charter router to my own. Consoles were on 2.5mb/s