The reason that AT&T is doing this is simple. They don't want you to own the modem. It actually saves them money when you use your own modem, they don't have to replace it when it breaks and they don't have to maintain a stock of modems, which is why they tried to encourage people to buy modems. They have changed their minds, because they realized that they cannot control modems that they do not own. There is nothing stopping you from running diffrent firmware on a modem that you own, getting around any speed caps that they may have placed on your account. All of AT&T's traffic shaping takes place at the modem.
What you are going to soon see is tired service, pay more to get a faster connection, pay less to get a limited connection. However, the only real diffrence will be the firmware that they send to your modem. Hence, they want to stop the spread of modems that they cannot control.
Won't work. They will only allow one modem on the account to connect, the one that you leased.
The reason that AT&T is doing this is simple. They don't want you to own the modem. It actually saves them money when you use your own modem, they don't have to replace it when it breaks and they don't have to maintain a stock of modems, which is why they tried to encourage people to buy modems. They have changed their minds, because they realized that they cannot control modems that they do not own. There is nothing stopping you from running diffrent firmware on a modem that you own, getting around any speed caps that they may have placed on your account. All of AT&T's traffic shaping takes place at the modem. What you are going to soon see is tired service, pay more to get a faster connection, pay less to get a limited connection. However, the only real diffrence will be the firmware that they send to your modem. Hence, they want to stop the spread of modems that they cannot control.