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Windows Server 2008 Thread, Microsoft Update Kills Firewall + Network in Technical; Is there any way to check what the actual updates that were applied, were? I've noticed that Exchange always suffers ...
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    contink's Avatar
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    Is there any way to check what the actual updates that were applied, were?

    I've noticed that Exchange always suffers problems whenever there's a update rollup released for Exchange... It sounds unlikely but given that Exchange seems to be the common link perhaps it's worth removing the latest rollup and seeing if that helps...

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    Quote Originally Posted by Slipbye View Post
    Hi Nick,

    I'm starting to think the same idea as theblacksheep in that it might be a corrupt gpo.

    Don't think ipsec is causing it anymore, just wated to test the safe mode idea cause if IPSec has issues it can enter block mode causing the issues your seeing however the service shouldn't start in safemode and as you still have the same problem i don't think it could be that (wouldn't rule out anything yet though).

    I would be tempted to run a dcgpofix however i hate suggesting it as it's one of those "last resort" options that can bite hard if it goes pear shaped.

    I'll have a word with a few mates and bounce some idea's but let us know if you resolve it in the meantime.
    Hi Slipbye,

    I did run dcgopofix (yes, I'm desperate) and without any luck

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    Nick_Parker's Avatar
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    Quote Originally Posted by k-strider View Post
    Might be a bit off left field here... (not something a Tory says too often lol)

    someone mentioned IPSec, and I know they use domain certs to authenticate with each other, so i was thinking is it just possible that the servers computer certificate has expired and its unable to get a new one... not really sure where I'm going with this... bit just a thought.. maybe in the AM with a clear head I could say more eloquently.
    I've tried fixing the problems with the IPSec policy, the problem is I don't really know what's causing it.
    I'm obviously going to keep on trying tho :P
    But, as slipbye said, I have the same problem in Safe Mode AND it's only on 2 of the servers, while all the of them have the same config & setup and have been recieving the same error in the logs.

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    Nick_Parker's Avatar
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    Quote Originally Posted by contink View Post
    Is there any way to check what the actual updates that were applied, were?

    I've noticed that Exchange always suffers problems whenever there's a update rollup released for Exchange... It sounds unlikely but given that Exchange seems to be the common link perhaps it's worth removing the latest rollup and seeing if that helps...
    I have checked and removed the last few updates that were installed, it seems they caused problems for other people too, but in different ways:

    KB960225 or KB958690
    General Discussion Vista Updates KB958690 and KB960225 cause network problem - Windows Update
    Vista Updates KB958690 and KB960225 cause network problems

    However, uninstallling them and performing the steps in the above sites didn't help.

    I check for the an update rollup (Those have caused problem for me in the past as well!) but there hasn't been one for a while and one of the 2 servers with the problem, is a DC server, not an exchange server.

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    Nick_Parker's Avatar
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    Just a quick note to say that I do appreciate everyones help and suggestions, please keep them coming!

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    Um, tried detaching it from the domain or changing it over onto DHCP / back again?

    (Just thinking of things outside of the box now!)

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    Quote Originally Posted by kmount View Post
    Um, tried detaching it from the domain or changing it over onto DHCP / back again?

    (Just thinking of things outside of the box now!)
    I can't remove either of them from the Domain, one of the servers is a Domain Controller and the 2nd is an Exchange Server

    I've tried changing it over to DHCP, it works, picks up a new address, but still isn't connectable on the new address.

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    Ah, bugger.

    Weird how you can get outbound etc no problem, I suppose adding a second network card to the VM might be worth trying?

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    Sorry, should have read Page2! - See you've tried removing/new.

    Any updates gone onto the host box?

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    Quote Originally Posted by kmount View Post
    Sorry, should have read Page2! - See you've tried removing/new.

    Any updates gone onto the host box?
    All the same as our other 3 host boxes

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    HMMM...

    Now would be a really good time for you to say "oh it's alright, the images are held on an iscsi san we can just restore them onto a new host".

    Not used HyperV before but can it do seamless transitions onto another physical host? If so, that might be worth a go to prove/disprove the image itself as the issue.

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    Just tried installing the Server 2008 Service Pack 2 RC, still nothing

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    Quote Originally Posted by kmount View Post
    HMMM...

    Now would be a really good time for you to say "oh it's alright, the images are held on an iscsi san we can just restore them onto a new host".

    Not used HyperV before but can it do seamless transitions onto another physical host? If so, that might be worth a go to prove/disprove the image itself as the issue.
    I've tried running the VM image on another host, same issues.

    I'm busy creating new VMs as we speak so I can at least start the recovery process to a new VM if I can't find a solution in the next few hours.

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    Interesting twist...

    I added a 2nd network card to the VM, assigned it an IP and left my laptop pinging the IP of the new network card.

    No connection, just like the 1st network card and the network card in the other broken server.

    I'm sitting there talking to somebody when suddenly the 2nd network card starts responding the ping, nothing had happened, nothing had changed, just out of the blue, starts responding....
    And then 1 minute later, it stops responding again...
    and about 5 minutes later, it responds again for another minutes and then stops...
    This keeps happening, the whole time the original network card and IP hasn't responded once.

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    Can you try fitting another physical nic to the host machine and then allocate this physical nic to the VM?

    Running out of idea's for you atm

    Also can you ping the host from the VM and vice versa?
    Last edited by Slipbye; 9th April 2009 at 11:24 AM.

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