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Straight Talk 3G APN settings on Samsung Galaxy and HTC

APN Settings

Name: TechnoTrading
APN: att.mvno
Proxy: proxy.mvno.tracfone.com
Port: 80
Username: Not set
Password: Not set
Server: Not set
MMSC: http:mmsc.cingular.com
MMSC proxy:
MMS port: 80
MCC: 310
MNC: 410
Authentication Type: Not set
APN type: default,supl
APN protocol: IPv4
Bearer: Not specified

Please type very carefully - It’s very easy to get the wrong settings entered on the wrong line.

Authentication Error

Sometime when moving away from a WIFI zone (i.e. from a wifi coverage are to a 3G area), you might get Authentication Error ("Authentication via the proxy server was unsuccessful."). The simplest solution is to turn off the wifi, and then try to connect to the internet. This is not a phone issue.

Another way of achieving the same is to just toggle airplane mode On and then Off.