So I'm renting a room and the apartament also has a router with internet access, since the wall plugs didn't have lan connections in them, I bought a wifi card (COMFAST CF-WP1750 1750Mbps). I plugged it into my desktop and was amazed by the fast speeds of glass fibre internet and this presumably high speed wifi card. Suddenly without me doing anything i lost connection, then it connected again, worked for a while, then lost connection again. I investigated, reinstalled the drivers, used windows default drivers, plugged in and out, re-attached the antennas, tried putting a lan plug in the wall, but it still isn't working and i can't really investigate why because I don't have the network testing tools, neither have access to the router interface, since it's locked for anyone other than the apartament owner.
I noticed the connection did something like this (notice the periodically appearing losses of connection):
Pinging the router showed the same results, whereas in i.e. 10 pings, 9 of them were at a latency of 1ms and the 10th was at latencies near to 1000ms, this is extremly annoying when playing games and listening to online lectures. Sometimes it doesn't detect the 5GHz variant of the connection despite seeing many other 5GHz connections from other apartaments.
The automatic energy saving mode on the wifi card is also turned off since I already saw many other forums on similar problems like this.
Today for example in the night i sat to like 3 AM in the night and i had no problems at all with the connection and when I woke up today and wanted to turn on my online lecture it started cutting off all the time and it's persisting while i am writing this post.
Could someone give me a clue on what is happening here and how i could possibly fix it?
EDIT: I also noticed that when another person in the apartament in the room besides mine opens or closes the door, the connection seems to cut off (wierd, right??)