Adding WMS service throws an error "WMS not accesible or doesn´t exist"

Discussion created by danare on Oct 24, 2013
Latest reply on Dec 7, 2013 by kamriesrisa-esridist
I´m trying to add to the Portal ( 10.2 version) WMS services from other providers, everytime I tried it, the process finalize with an error: "WMS not accesible or doesn´t exist".
I add the same service through ArCcatalog, so I´m sure that the resource is available and running. The same happends with internal WMS resources.
(Arcgis  services accesed through REST directory works fine)

I´m wondering if I´m  missing something in the configuration , anybody else with the same problem?