WiFi connectivity problems

[NonStandardUser]

I've built a new rig, since my old friend(laptop) died of a freak accident which involved broken cooling fan wings.

Anyway, after much trouble that turned out to be a RAM seating fault, I've got everything up and running, with my 6700k and 750ti sweetening up those fps'es in my games.

All is fine for one thing, and that is the HOLY MOTHERF**KING WIFI PROBLEM.

 

My WiFi AP is fine, since all the other WiFi devices are not experiencing dropout issues at, say, streaming YouTube or other online things. My old laptop also did not have much of this fault.

But it seems my Realtek 8821AE m-pcie wifi card is lagging my games like f**king hell. Not only that, my skype calls drop out frequently also(proving it is NOT that game's fault.) which is VERY uncomfortable.

This goes as bad as to crashing my computer whenever a network-based game has an abrupt disconnection(TF2, L4D2).

 

Any help would be appreciated in troubleshooting this parasitic problem. Do I have a problem with my AP and it's just me who's not noticing? Or is it indeed my card's problem? Or anything else?

 

Additional information:

i7 6700k

GTX 750ti

Samsung 2133MHz 8GB*1

Asrock z170m-itx/ac

Windows 10 Enterprise

Realtek 8821AE

This rig is a mini-itx rig, and wifi card has external antenna.

[rabbitburger]

Have you gone to Realtek's site and downloaded & installed the current drivers?

[NonStandardUser]

I've tried that, but no official 8821AE drivers(must be an OEM model or something, this came with the Asrock board. I've seen the driver in the device manager-latest drivers, no need to update. Tried uninstalling and reinstalling in device manager, still the same issue.

[rabbitburger]

Are there wifi drivers on the Asrock site?

[NonStandardUser]

No, there isn't.