Any references about this?
I need someone to test the connection.

Communication via AIS
Server NT2000 ADS 7.0.0.3 International
DataDictionary
Webdata, Internet access enable, Security Level 2
User webtest, Internet access enable

Open a DBF File with Data Dictionary
File M_Clie.DBF Security level 2

Client XP ARC 6.2
\\200.78.43.160:4001\WebDataDatos\WebData.Add
User webtest
Password adsmexico

Sends the error 8026

Client XP ARC 7
\\200.78.43.160:4001\WebDataDatos\WebData.Add
User webtest
Password adsmexico
Works Fine