Originally Posted by Yevrag35
I've never heard of anyone using a US (intended) motherboard with a foreign power supply. I can't even imagine the problems that might cause.
But both of your problems sound like a lack of power to the required components
In today's world, MOST modern power supplies will automatically switch between 240v and 120v, 60hz and 50hz. If not, you can switch them with a small slider switch that's usually on the back of the psu. After all, it wouldn't make sense for big companies like corsair, rosewill, Antec... to only make a power supply that would work on 120v. 120 volts is like the non metric system, inefficient, out of date, and almost exclusively used in america! :P
to me, this sound like a Classic Networking issue. I need to know the EXACT model of your wireless router and your PCI + USB Networking adapters.
99% of the time, when these issues pop up its going to be caused by conflicting wireless standards and out of date protocols. For example Type B/G/N/AC Speed standards, countless security protocols, 5Ghz vs 2.4ghz.
Let us know and we can help further.