Learn how to install and configure routers and I'll hire you.
I can do that.
Did you get sacked? :P
If that's meant to be some kind of insult, then you only show how oblivious you are to the whole situation. A lot of guys get sacked here all the time, because employers only give you a short-term contract, and usually ditch you short before the contract expires, so that it looks as if they've tried. But the simple truth is that they want cheaper labour migrants to work for them on a temporary basis.