proxy network dont connect wms

[mapas]

Hi all

my network use squid in port 3128., i try to conect in my network office to a service wms, but dot work.....

i try

http://usa.autodesk.com/adsk/servlet/ps/item?siteID=123112&id=11794193&linkID=9240857


but dont work....:(

Error en el servidor remoto: (559) MgFdoException.:
An exception occurred in FDO component.
Unable to connect to the host.
Exception occurred in method MgFdoConnectionManager.Open at line 858 in file d:\build\mapguide_open_source_v2.0\build_30.11


somebody helpme????


thanks a lot

oscar