Event ID 537

I have an ISA Server on WIN2003 that is a member server in DomainA. DomainA
has a trust with DomainB which is a non-AD domain with a mix of NT4/WIN2000
servers. Currently DomainA only has 2 Servers; an AD server and ISA which is
not a DC. Here's my problem:

Mutliple times a day the ISA server is trying to authenticate to an NT4 DC
in DomainB. When it tries to authenticate I get an error 537 (an unexpected
error occured during logon) the username is the machine name of the ISA
server. I don't know why the ISA server is even trying to logon to DomainB
at all. The NT4 server in DomainB that the ISA server is trying to logon to
is also the WINS server for DomainB. When the ISA server tries to logon it
is doing a SAM LOGON REQUEST to mailslot\net\getdc549

Thanks in advanvce,
Ed

Do you have users from the other Domain listed anywhere in any of the
permissions?

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

"Ed R." <(E-Mail Removed)> wrote in message
news:B79A2DF6-0549-448D-816F-(E-Mail Removed)...
> I have an ISA Server on WIN2003 that is a member server in DomainA.
DomainA
> has a trust with DomainB which is a non-AD domain with a mix of
NT4/WIN2000
> servers. Currently DomainA only has 2 Servers; an AD server and ISA which
is
> not a DC. Here's my problem:
>
> Mutliple times a day the ISA server is trying to authenticate to an NT4 DC
> in DomainB. When it tries to authenticate I get an error 537 (an
unexpected
> error occured during logon) the username is the machine name of the ISA
> server. I don't know why the ISA server is even trying to logon to
DomainB
> at all. The NT4 server in DomainB that the ISA server is trying to logon
to
> is also the WINS server for DomainB. When the ISA server tries to logon
it
> is doing a SAM LOGON REQUEST to mailslot\net\getdc549
>
> Thanks in advanvce,
> Ed