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I have several W2K3 SP2 servers, admin TS enabled. I discovered this morning, I was unable to logon into some of them. I've a couple of Citrix servers in different farms, a SAP (IA64) app server and a cvs server. All of them show same sympthoms; remote connections are refused. I've been able to logon locally, and terminal server service is up, there are no users (so connections are not depleted).

There are no errors in log in most servers. One of the Citrix ones, reported following errors:

Event ID 50

Source TermDD

Type Error

Description The RDP protocol component X.224 detected an error in the protocol stream and has disconnected the client.

and

Event ID 1006

Source TermService

Type Error

Description The terminal server received large number of incomplete connections. The system may be under attack.

Anyway, I suppose these errors appear because server isn't working, and Citrix users try to logon massively. (I nmap'ed server and port seems up).

I've solved this problem rebooting before, but with so many servers affected it seems like a crappy workaround. Any idea about troubleshooting it properly?

Thanks in advance

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3 Answers

up vote 0 down vote

Here's a question posted on EventID.net about a similar problem:

http://www.eventid.net/display.asp?eventid=50&eventno=606&source=TermDD&phase=1

The only problem is the M### don't link to the MS articles on MS website, but on the (same) articles on EventID.net, so you'll have to figure out which MS articles they apply to (or become a subscriber, not sure if it's free, didn't check).

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I'd already checked eventid site without success before posting here. My problem is similar to this one, itnewsgroups.net/group/microsoft.public.windows.server.general/… but it doesn't happen after reboots. I've checked private hotfix, but I'm not sure about it. – satch Sep 14 '09 at 14:32
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up vote 0 down vote

I recently found that TS got problems with connecting when Advantage Validation Tool is not installed properly, Just guesting You may check that part of software on yours WIN2K ore they get automatic updates which is locked system because problems with WGAs

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up vote -1 down vote

Never happened to me, but maybe it could be a network issue?

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I could traceroute to all of them without problems. Nmap reveals port 3389 is listening. I could telnet to 3389 and when I type I get disconnected. I read about a terminal server problem related to MTU but was a SP1 or pre-SP1 issue. I tried to access from several different clients, some of them located on same subnet without success. – satch Sep 14 '09 at 13:18
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