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	[x] Attachment Details

ISA 2006 windows cannot determine the user or computer name (the RPC server is unavailable.)

Zones: Network Software Firewalls, MS Internet Security & Accel

Tags: isa, 2006, rpc, server, cannot

I am working with a fresh Domain with two DC's on the internal network of a fresh ISA 2006 EE installation. Prior to the installation of ISA 2006 the server can connect to the domain with no problems. A telnet session to port 135(RPC) connects without a problem. After ISA 2006 installation i was unable to reach (ping or connect on rpc port) the DC's from the ISA servers. I created a policy to allow all traffic to and from the ISA Servers in an attempt see if that would solve the problem. After i could ping, but not telnet over port 135. I took a look at the ISA server log and it show denied traffic coming back from the DC's on random ports. (2017 for example). How am i to allow this traffic in as it is necessary for the ISA servers to authenticate. Below is the error received in the event log. Any help would be appreciated.

Event Type:      Error
Event Source:      Userenv
Event Category:      None
Event ID:      1053
Date:            5/17/2007
Time:            9:26:40 PM
User:            NT AUTHORITY\SYSTEM
Computer:      BPKPROX1
Description:
Windows cannot determine the user or computer name. (The RPC server is unavailable. ). Group Policy processing aborted.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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4.0

Question Stats

Zone: Microsoft

Question Asked By: drbbton

Solution Provided By: Computer101

Participating Experts: 9

Solution Grade: A

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Comment by ckratsch

Fought with ISA all day, this worked for me:

http://support.microsoft.com/kb/927695

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Comment by keith_alabaster

ckscratch - please review the member comment I have added to your profile.

keith_alabaster
Networking Zones Advisor

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Comment by ckratsch

Don't worry, you've singlehandedly and successfully alienated me from returning to EE.

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Comment by keith_alabaster

So be it

20080723-EE-VQP-34