What are you doing when it detects the proxies? And do you get a dialog box or what? Just curious...

I don't know what type of internet connection you have, but it could be that your ISP uses dynamic IP's (the address of your proxy changes every time you connect to the internet) instead of a static IP. And you may just be running into when the modem is resetting itself or the base server of your ISP is resetting itself. Dynamic IPs are used to minimize hacking. But given what happens to you... I doubt this is the case. I would recommend calling your ISP.

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I see your fantasy... you want to make it a reality

Are you in the mood to be subdued

You see these shackles
Baby I’m your slave
I’ll let you whip me if I misbehave

Tie me to the bedpost

I like it rough
cause I'd rather feel pain than nothing at all