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New Member

ACS 3.2- NT Domain WAN Problem

I have three domains, Domain A (NT 4.0) Domain B(NT 4.0) and Domain C (Active Directory). the ACS works for a Cisco Access Point (LEAP).

The ACS is member of Domain C (W2000). and Domain A ans C are on the same LAN. Domain B is connected trought a 512kbps WAN link.

If I try to logon (on Access Point) from a Domain C user, ok.

If I try to logon (A.P) from a Domain A user, ok.

If I try to logon (A.P) from a Domain C user, timeout....

However, the Windows logon process works for all Domains and works fast, I mean, I can logon in a workstation with a user account from A, or B or C.


Re: ACS 3.2- NT Domain WAN Problem


This is a know problem with domains over the WAN link. There are couple of timeouts here, one is on the ACS timeout, and the other one is the AP timeout. I would suggest you to open up a TAC case and so that TAC can follow up with the developers to see if there is any viable solutions/work around on this issue.



New Member

Re: ACS 3.2- NT Domain WAN Problem

I've opened several TAC cases on this issue. I get no value from the contact. I found that the NT version of ACS has a key to modify.



Changing this value fixed my WAN authentication problem. Then, I moved to the ACS appliance. So far, Cisco has no way to extend the ACS timeout since you can no longer directly access the OS.

I got a patch from Cisco, but it didn't work. I expect that the problem now is that the appliance is not the cause of the timeout, it is the remote agent.

I can't imagine that I'm the only person who uses Radius authentication to an NT database over slow WAN links.

New Member

Re: ACS 3.2- NT Domain WAN Problem

Hi Kevin.

I had to install a local (in the same LAN as the ACS) BDC Server for the remote Domain. It worked. Thanks for your answer.