Dell Venue Pro phone Wifi problem and question

Hello!

Just got a unused Dell Venue Pro Windows Phone smartphone(thought about using it as a secondary phone)
and I have problems: the phone doesnt find any secured wifi, it finds my Android phones Hotspot, but it doesnt find my work Wifi.
(I read about this problem, something about not finding secure wifi networks on first batch of phones...) any way to fix it? I really need to get this phone on a wifi network..
I updated the phone trough PC, but the WIFI issue is still there...

and the question: Any custom ROMs or something avaiable? (In hope, that it could fix the Wifi issue)

[Q] Xposed on Venue 8 38xx?

So it's possible (I guess) to get Xposed on these Venue 8s somehow. On Lollipop, you can flash the x86 framework through recovery and you're good, but that's only for Lollipop. Is there an x86 framework zip for Kitkat anyone knows of? I've been searching for a while and I can only find the Lollipop zip frameworks. It would be great to have this, considering that trying to install Xposed through the normal installer results in a bootloop. The only way to be able to install it successfully would be to flash a zip through recovery, I reckon.

Thanks