When I see this I usually have more to work with but since I can boot up some Linux Live DVD or USB (no install required) I can test if it works in Linux (browsers are browsers) and see if the problem happens in Linux. The outcome of that test determines my next move as to hardware or an OS investigation.
I'm having some very annoying issue with my internet connection. The issue is, when I use up little more of it's bandwidth (it's a 200mbps connection), the internet just drops dead. Just stops. It doesn't show as "No internet connection" on the toolbar simbol, still says it's connected - but there is no traffic in or out. So to recap, if I only have 1 page open in browser, or just playing online, internet works. As soon as I open up multiple pages, or start using up more bandwidth, it dies out. This happens only on my PC, tried with other rigs, no such issue. I'm not sure what system info I should post - please tell me (steps included - I'm not much of a PC guru sadly). Any help would be appreciated. If all fails, I'm tempted to do a factory reset in about a weeks time cause it's just nerveracking not to be able to even stream vids on youtube, or open up 2-3 tabs in browser, sending files through conversations.