July 2007 Windows Vista Application Compatibility Update kills Deterministic Network Extender which can in turn disable your network interfaces

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Wednesday, July 11. 2007

July 2007 Windows Vista Application Compatibility Update kills Deterministic Network Extender which can in turn disable your network interfaces

A few coworkers ran into this issue today and I'm hoping this information will help some people out.

Unfortunately many VPN clients, including Cisco's VPN client, use the DNE adapter. If you install the Cisco VPN client and then install KB 935280, your network adapters will no longer work.

Solution to the problem if you have already installed KB 935280?

You can do one of the following:

1. Unbind DNE from your network adapters after installing KB 935280. DNE and any program that uses DNU will still be disabled.

or

2. Uninstall KB 935280 until a fixed version of DNE becomes available or the VACU receives another update.

It looks like the KB article mentions version 3.12.2 of the DNE.
I am not sure if there is a newer version available but I would love to know!

Thanks go out to Tom Dietz and Kevin Somers for initial problem report, the root cause and solution.

in Vista at 13:07 | Comments (11)

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Thanks! I had no internet access after this happened, so I uninstalled each patch one by one until the network worked again. Wish there was an easier way!

#1 Dave Semmelink on 2007-07-11 21:59 (Reply)

Thanks a bunch! I tried everything to fix this. Didn't think of uninstalling the patches though.
Dave, did you happen to write down which patch was the guilty one? I would really like to update my daughter's computer but cannot go through this again.

#1.1 Rhonda (Homepage) on 2007-07-31 03:15 (Reply)

It's Update for Microsoft Windows KB935280. Don't forget to disable automatic updates - it insists on installing it again.

#1.1.1 Dave Semmelink on 2007-07-31 03:38 (Reply)

There is an easier fix that keeps other updates working without killing Windows Update. Just uncheck KB 935280, right click on it and say "Hide Update". I am hoping the August app fix has a workaround for this problem. In general, automatic updates are a good thing.

#1.1.1.1 Aaron Tiensivu (Homepage) on 2007-07-31 09:30 (Reply)

dude, you rock, the update thing was crashing the VPN thing and in turn was not allowing us to go onto the internet thing (AKA the web), thanks again...

#2 Douglas and Kate in New York on 2007-07-13 00:49 (Reply)

thx man. this pissed me of for about 1 hr this morning. You were the only one with solution.

Love easy solutions. thanks again

#3 emmessh on 2007-07-13 05:33 (Reply)

Thanks Asron! Your info saved a lotta time for me. Hope MS will release a propoer KB next time.

#4 Chow on 2007-07-15 22:05 (Reply)

Thanks, I wonder why this is not big news all over the place, it killed my ability to get on line so I am sitting at someone elses computer trying to figure out what my issue is.

#5 scott on 2007-07-15 23:34 (Reply)

Thanks. I have had this stupid message come up and stop me from working for over a week now. Tried everything. You are a saviour. Microsoft are a nightmare!

#6 Andrew R on 2007-07-18 04:51 (Reply)

so do we have to leave automatic updates off forever????

#7 scott on 2007-07-29 19:40 (Reply)

Thanks! That saved my PC.
It is a nightmare to install an update and then find out that you cannot connect to the internet anymore to even find out what happened! Uninstalled the KB and back to work!

#8 SK on 2007-10-13 10:30 (Reply)

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