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I have noticed that some days I am able to chat while using Gmail, and other days I am not. It would make sense to me that I would either always be blocked, or never. But I can't figure out why it seems to change daily or weekly. Is Google constantly changing the URLs involved so that the censoring companies (they use websense where I work) have to play catch up? Or is there some other reason I'm missing?

I am more interested in the technical reason it is might be happening than in an actual work around.

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Have you checked the URLs when you're blocked and when you're not? Is it at different times of the day/days of the week? They might let chat through at lunchtimes (say) but not at other times. – ChrisF Jan 3 '11 at 18:43
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There's too many possible variables, ask the person who controls your firewall, it's their job. :) – techie007 Jan 3 '11 at 20:00
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closed as too localized by Nifle, techie007, ChrisF, studiohack♦, honk Jan 3 '11 at 22:45

This question is unlikely to ever help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. See the FAQ for guidance on how to improve it.

2 Answers

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If it is anything like here, it is because someone with the ability to get things unblocked gets annoyed that it was block and manually unblocks it. Since they are not strictly allowed to do it, it ends up getting blocked again and hence continues the cycle

In summary: It probably has nothing to do with Google/gChat and all to do with people at your company.

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up vote 0 down vote

Google Chat uses different protocols until one of them works, which is why you're having this issue. Do you know what kind of proxy you use?

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