I was recently involved in a project where I was getting a constant error message appearing in my iwtrace.log (iw-home/local/logs).
I was looking up reasons and solutions for the error, and found the below;
The error is caused by an attempt to run TeamSite on an NTLM domain. TeamSite no longer supports NTLM domains: you must run TeamSite on a Windows 2000 or later (Active Directory) domain.
Add your TeamSite server to a Windows 2000 or later (Active Directory) domain then the error messages should go away.
Also, it is recommended to add the line set domain_list=<DomainName>
under the [iwserver] section of iw.cfg,
located in iw-home/etc.
<DomainName> is the list of domains not including the local machine name the local machine name. If domain_list is incorrect, then you will see a variety of error messages in the iwtrace.log (mostly referencing ADSI problems) and possibly even a server crash.