Modem/Router Swap procedure

[mlumb7]

I have a grandfathered AT&T wireless home internet account and use an MF279 that has been giving me trouble.
I purchased an IFWA-40 to replace it. What do I have to do when it arrives? Can I just SIM swap? Do I have to contact AT&T and pay an activation charge even though its a 1 for 1 swap?

Thank You

[Viper67857]

With AT&T, simply swapping over the sim and making sure the APN is correct is generally all you ever need to do

[Didneywhorl]

I second what Viper said. I think thats all it takes

[MattB29]

Unfortunately you could lose your Grandfathered service by swapping the sim. The IMEI of your new device would have to be acceptable to AT&T and the swap approved by them.

[mlumb7]

Thank you all. I ended up bringing it to an AT&T store and the person there said just swap the sim s as well. I explained adamantly how I did not want my account screwed up and he also changed the imei in the system. He of course did it wrong, and I got home to find none of it worked and had to go back the next day. The second time I was good. No account issues the modem functions on my old account. I’m STILL having the issues I was grabbing with my old modem but that’s a discussion for a different post I think.