Re: SBS 2008 Server losing DNS and Router Settings since Windows U
- From: Siv <Siv@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 7 Oct 2009 07:59:01 -0700
Susan,
I am not sure what the problem was, it just seemed strange that my two
clients out of about 30 who have SBS 2008 went down around the same time with
similar DNS related issues.
I am beginning to think the second client may have been down to a faulty
router, but I still can't understand why in both cases the second disabled
network card had become enabled and DNS settings and DHCP had become changed
in some respects.
I am confident they hadn't been hacked as I can't believe a hacker would
benefit by messing up the networking and disabling the routers??
I think in relation to the error message you are thinking of the one that
comes up when the wizard cannot configure the settings itself because it
can't see UPNP, the error I was getting is after you start the wizard it says
it wants to try and locate the router. It hunts for a minute and usually
will find the router and server's IP Addresses it then fills those in. In
this case it failed to find the router and I had to manualkly entere the
router's IP and the Server IP. It then continues and a long progress bar
goes across when it gets to the end it normally goes to another page, but in
this instance you get a single red warning icon and the message "An
unspecified error has occured, please contact Microsoft Product Support" and
when you click OK the wizard ends.
Siv
--
Martley, Near Worcester, UK
"Susan Bradley" wrote:
Siv wrote:.
Cliff,Windows update would not touch a router.
Both these routers are firewall routers, I admit they are not as powerful as
a dedicated SonivWall or the like, but for small businesses like these they
are fine. These clients only have a four or five users and the costs of a
dedicated firewall is relatively high.
I am blaming Windows update for something as I have never known a Netgear
DG834G reset itself back to factory defaults on its own and unless the staff
in the office are lying to me and have started messing with the router the
only thing that does mess with the router is Windows. Also this setup has
been running for ages without any issues and then just prior to the problem
starting a number of Windows Updates were applied.
I appreciate that MS test all their updates and this is unusual, which is
why I am posting it here as a question. My clients are back up and running
so I am not after further assistance, I just wanted to raise the question to
see if any other users were reporting this sort of fault. I just felt it was
too much of a co-incidence that I have two clients on SBS 2008 and they both
went down after Windows updates were applied over the weekend!
Both machines are working again fine, but it took a lot of messing with the
DNS settings to get things working properly again.
In the second system I mentioned I did log into the router from the SBS box
using its web interface and was able to connect to it without any issues, so
why couldn't the "connect to the internet" wizard locate the router on the
network, especially as the server's own NIC settings have the IP of the
router set as their gateway address??
"Even enabled, if the NIC is not connected to the network (which there is no
reason for it to be) then enabling it won't impact DNS or DHCP. Both
service still bind to a NIC< so a second NIC will NOT impact the first
bindings."
On reflection I think I may have triggered the changes to DNS DHCP. This
occurred because at one point I thought that maybe the main NIC had some kind
of weird fault that did allow networking but was confusing the wizard, so I
switched the single connection to the router to the second NIC, this would
explain why DNS and DHCP picked up the second IP address.
So I'll take that one back, maybe I can't blame Windows Update for that one.
I can blame something for enabling it in the first place as it definitely
wasn't enabled. I know this because I always rename the unused NIC's name to
"Don't Use" and leave the main NIC as "Local Area Connection" so that I don't
click on it and enable it by accident.
This particular client never goes anywhere near the server so I know that
they haven't done this manually themselves.
In the case of this second client with teh Draytek router, their router
hadn't been reset to factory defaults but it had become invisible to the
wizard and in fact the NetGear I replaced it with cannot be seen by the
wizard either, which prior to this issue it could without any problems.
Like I say it's all working fine at both clients but I would liek to know
what the hell happened.
Siv
I write articles and research what windows update does for
www.windowssecrets.com
WU can't touch the settings on the router. Period.
That wizard is only looking for UPnP settings. That "error" message is
actually normal.
- References:
- SBS 2008 Server losing DNS and Router Settings since Windows Updat
- From: Siv
- Re: SBS 2008 Server losing DNS and Router Settings since Windows Updat
- From: Cliff Galiher
- Re: SBS 2008 Server losing DNS and Router Settings since Windows U
- From: Siv
- Re: SBS 2008 Server losing DNS and Router Settings since Windows U
- From: Susan Bradley
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