If you are experiencing a problem because you are connecting through a firewall or proxy server, you will need to configure your firewall or proxy server. The following information should assist with your configuration:

Basic Connection:

Protocol: TCP or HTTP

Servers:

• scs.msg.yahoo.com
• scsa.msg.yahoo.com
• scsb.msg.yahoo.com
• scsc.msg.yahoo.com

Port: 20,23,25,80,119,5050,8001,8002

Webcam Connection:

Protocol: TCP

Server: webcam.yahoo.com

Port: 5100

File Transfer Connection:

Protocol: HTTP

Server: filetransfer.msg.yahoo.com

Port: 80

File Sharing Connection:

Protocol: HTTP

Port: 80

Voice Chat Connection:

Protocol: UDP or TCP

Servers:

• v1.vc.scd.yahoo.com
• v2.vc.scd.yahoo.com
• v3.vc.scd.yahoo.com
• v4.vc.scd.yahoo.com
• v5.vc.scd.yahoo.com
• v6.vc.scd.yahoo.com
• v7.vc.scd.yahoo.com
• v8.vc.scd.yahoo.com
• v9.vc.scd.yahoo.com
• v10.vc.scd.yahoo.com
• v11.vc.scd.yahoo.com
• v13.vc.sc5.yahoo.com
• vc1.vip.scd.yahoo.com

Ports: 5000-5010