cannot connect to network

When opening the steam desktop app, and upon signing in, steam will not connect to the online servers, even though the PC can connect online. I am unsure what brought this on and what has changed from before it was working until now. I am using Windows 7. I have tried: Reinstalling steam...

Just like the title says. I had recently set up a Wi-Fi connection (which I named 'chickensoup', don't ask me why I picked that name...) and after I had finished setting everything up and trying to connect to it, me and my housemates were unable to connect to it. It's not only me but other...

I connected the card to my motherboard but the monitors don't seem to turn on. Motherboard:GA-H81M-DS2 (rev. 2.1) Previous gpu : geforce gtx275 Monitors: samsung S22B150(vga) and S22C300(dvi)