Probably down to the QTel router, check what make and model it is and do a bit of research online, unlike Virginmedia in the UK, I have noticed lockdowns in Qatar with regards to routers etc. I have a career background in networks and hardware, if you need a hand or advice drop me a PM.

Your lucky you can get Fibre, I live in Al Waab, maximum I get is 2mb!!!! when I'm used to having 120mb (in UK) this speed is crippling! argh lol