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Windows 2000 server TCP problem

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rleestma

Technical User
Joined
Jul 31, 2001
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99
Location
US
I have this massive box, a quad xeon w/ 2GB ECC on it...

I have this wierd, unexplainable problem that a complete rebuild did not solve...

First off, this box is primarily an Internet services box... Xchange, RDP, IIS...

Secondly, it has a T-1 connection to the net...

Now, if no-one is currently working off the box (no RDP sessions, IIS sessions, Xchange, etc.) then the box times out when someone initially tries to sign on... This can be seen most easily by a web site being hosted on the site timing out. When you hit F5 to refresh, or retry to initiate a session, the box comes right up.

I optimized performance for background applications, checked my MTU settings, and numerous other things, but am coming up stumped.

Anyone have any ideas?

HELP HELP HELP!!!!

Ryan Leestma
ryanleestma@netnitco.net
 
you could try setting up a batch file to ping the server every x seconds
 
I know, and i have done that in the past to keep connections alive, but it's just not the best solution IMHO...

Ryan

Anyone have any other ideas?

Ry
 
I would do a netmon capture and look for the first failure in one of these time out events.
I have a strong feeling that this could be your ISP's router dropping your T1 between the server and the external web presence router. First, check to make sure that you appropriate ARP and ROUTE settings that point to your internet connectivity router. If they look fine, then you may need to rip apart the Netmon to see where you are losing the session. Perhaps when Idle, your port on the router is dropped, and a new connection has to be negotiated. In this scenario, Your ISP will undoubtedly say that his router is fine, hence the proof with a hard Netmon capture may be your only evidence.
 
Another thought is that the NIC might be powering down and not coming out of it properly. I always make disable NIC power management on Servers. Vince Grice
vgrice@hotmail.com
MCSE Win2K, NT; MCSA; MCP+I
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