Cisco Ironport message popping up

[Velvis]

I did some work last night on a client machine (Windows 7). (Updates, scans, etc.) I also may have renamed the computer, (I dont recall for sure, as it was late and I renamed a bunch).

Today when attempting to access any webpage on that machine (no others seem effected) I get a message popup:

The server at ironport.prod.isheath.net at ironport web service appliance
requires a username and password.
Its asking for a username/password I didnt know existed.

My guess is its something in the server closet that I havent needed to deal with that has come up from changing the computer name.

I can log into the machine with user and admin credentials without issue, but no web access and the mapped drives wont connect.

I can ping yahoo and that works.

I looked into Internet Explorer settings for a proxy setting but it set at automatically detect.

Any ideas?

Thanks.

[onetech4all]

We use the IronPort at work (my full time job), but I don't manage it.
When the browser is asking for credentials we use this format:
User: domain\username
password: pass

It's not very much, but I hope it helps!

[YeOldeStonecat]

Content filtering appliance at the edge of their corporate network. Depending on the policies...you may need to contact the IT guy at their office to have him let the computer back on (although I don't recall seeing those need the netbios name of the computer to allow it through).

But here's what I would be concerned about...since you "don't remember" if you renamed his computer or not, since it was a corporate network...it probably runs active directory (a server..a domain controller) and you shouldn't be nilly willy renaming workstations ..you should have gotten challenged for admin credentials when you tried to do that...and the workstation now has "fallen" off of the domain. The IronPort is probably using AD based authentication to allow end users through..and that is now broken.

[OfficeTechs]

yep endpoint security to ensure the user can only access the net through authorized channels and as above will surely use AD credentials (probably cached).

Is it running 7 Professional?

[Tekko]

Stonecat pretty much nailed it.

If it turns out you didn't rename the computer, then you're probably using a browser without LDAP functionality, and should switch the user back to IE