Any chance you have a web filter/proxy for accessing the web? For us,
domain joinned windows hosts pass through the filter fine. VM guests are
sometimes prompted for credentials and other times not. Its a bit hit or
miss. It doesn't account for the version issues unless the filter was
added/changed recently.
\\Greg
On Wed, Apr 25, 2012 at 9:07 PM, Rance Hall <[email protected]> wrote:
> I have a win7 64bit host that has been running vbox for a long time.
> The last two updates (4.1.10 and 4.1.12) have left all my guests
> without network access.
>
> I tried asking about this once before, but I didn't ask a very good
> question because I didn't know how to troubleshoot this issue.
>
> I installed vbox 4.1.12 on a new win7 64 bit machine at work today and
> it works flawlessly.
>
> This tells me there is something wrong with my problem host and not vbox.
>
> I tend to prefer bridged networking, but Ive tried over the last few
> days with NAT also, with no help.
>
> I've tried different guest OS families from Win XP to Linux to BSD,
> all have similar brokenness.
>
> Here is what happens (in bridged mode):
>
> 1) Guest launches normally and gets IP address from network.
>
> 2) guest can ping by name sites on the internet.
>
> 3) Web browsing times out.
>
> It *FEELS* like that vbox is firewalling tcp packets or something
> similar, but I can find no place where this would be setup.
>
> I know this isnt stock vbox, but does anyone have any ideas of
> anything else I can check.
>
> So far I've tried uninstalling/reinstalling vbox.
>
> I've deleted all the network adapters from device manager (including
> the isatap adapters that you see when you "view hidden devices") and
> reinstalled.
>
> So far, I've come up empty.
>
> Any help or pointers appreciated.
>
> Rance
>
>
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