I wonder how with such a simple procedure, you still have trouble running your accounts. Here's a screenshot, literally a minute ago - I'm sitting at my wife's computer, under Windows 10, and you can see my account alive and well. The client is QIP 2012 !!! and yet - it works great and I'm online. If you want, I'll take a picture of how this same account works in Pidgin under Linux. Either you have a problem with ISP, or you use VPN, I don't know what else it could be.