About 9 months ago I installed my SBS 2008 server using my Open
License DVD (not OEM) and a custom answer file. It worked great and I
was up an running in no time.
Two weeks ago, after giving up trying to manually back out of a bad driver
update from Microsoft, I wiped my server's two RAID1 arrays and
started over from scratch. I used the exact same answer file and DVD,
but this time, there is something wrong with my network and I can't
figure it out.
Users complain that web pages time out most of the time.
Users complain that Exchange drops offline repeatedly.
Users complain that while editing a document on the server, their
computer hangs for 3-10 seconds.
STEPS TAKEN (in no explicit order)
I applied the hotfix to resolve the multiple processor/TDI issue and
it didn't change anything.
I configured TCP Chimney as indicated.
I have verified my DNS forward settings work.
I have purchased and installed new router/gateway
I have run packet loss tests from DSLReports with no errors
I have asked my ISP to run diagnostics on our T1 with no errors.
I have used SBSDIva's list of default services to ensure that I wasn't
missing any services (Thanks SBSDiva!)
I have updated my BIOS, firmware for my MOBO, firmware for my DVD
Drive, RAID controllers, and NICs
I have updated all of my drivers
on the server with the latest
versions offered by dell.
I have even changed my router's public IP address in case I was having
a Denial Of Service attack.
Because my server has a dual GB NIC, I have disabled one of the NICs
I have swapped active NIC interfaces (disabling the active one and
enabling the other in case one was bad)
I have verified that all users' network settings reference my Domain
Controller for DNS
I have run every Wizard I could find in the SBS Console
I have configured DHCP with reservations for my users (IPV4
I have verified that UPNP is set on my Gateway and that SBS Fix My
Network is able to open ports it.
I am going to setup Wireshark to study port traffic today in case I am
PROBLEMS: Everyone on my network is faced with terribly slow internet
access, though LAN traffic seems to be okay.When connecting through
RDP from the WAN, I am able to login about 75% of the time and
occasionally, I'll stay connected for a good 30 minutes, but usually,
it disconnects in about 30 seconds with no error. I have been on the
phone with Dell Enterprise Support and Microsoft Tech Support for
literally days...still not resolved. Sometimes it will reconnect right
away and then show the disconnect for half a second or two. Sometimes
it says my server is unavailable and sometimes it connects and
reconnects with no problems (though slow) for a long while (from the
At a certain point, I finally decided that it had to be hardware
related with my server. I contacted Dell for help and they gave me
some files to download. I connected a workstation that I had logged
into locally (not joined to the domain) and tried to download the
files--no luck (same timeout issues) When I checked the router, I
noticed that the log indicated that it had blocked a ton of SYN/Ack
connections. If I tried to browse the web interface for the router, it
would show you one or two tabs and then time out even though I was
directly connected to it with no other devices connected) I determined
that the brand new router was hosed (and I have since verified that
outside my office network), so I connected a tired old WRT54G (running
DDRWT) and everything suddenly started working again--at least for a
couple of hours. Then everything ground to a halt again.
Resetting the router helps a little, but not for long. Rebooting the
server helps for 30 minutes or so, but then starts dropping. I can't
find any errors in my event log that directly coincide with these
outages and I am meeting with my boss to get the axe this afternoon,
Any suggestions about where I should go from here? (Sorry about the
long post, I am hoping that this thread will be a useful reference for
myself and others with the same problems)
Thanks in advance for enduring this post--any suggestions, advice,
criticism, etc. would be greatly appreciated.
p.s. I couldn't find the SBS 2008 group to post there, but I have
noticed that many of the problems/fixes listed above also exist for
SBS 2003, so maybe this is the best place to post...