Why can't I access my internet?

[AC Question]

why cant i access my internet?

I have an at&t Samsung sgh-a177 that I switched over to straight talk. I changed my settings but now when I try to access my internet it shows a lock and asks me to login in to my at&t account.

 

[Rukbat]

Re: why cant i access my internet?

I assume you have a Straight Talk AT&T SIM in the phone, right?

And you're connected to the internet by your own router, not through an AT&T hotspot? Or if you're using mobile data, you changed the APN to the one that came with the SIM (or added that one and switched to it)?