Troube registering a Gateway Hi there, I am trying to register a VOIP/ISDN gateway from Auerswald (actually, this device is manufactured by Tiptel) and I get a "407 Proxy Authentication Required" error. The Gateway has been registered successfully on FreeCall so it seems to be ok. I can register OpenWengo on the local machine (the one that runs the 3CX server). The 3CX server and the client gateway are connected through a simple local Ethernet switch and I seem to have deactivated all firewalls on the server. Here are the Etherreal captures : Can someone help me understand ? I shall provide other info or Ethernet captures if necessary.