@Luismiguel1977 , ok this is an easy one. No .... You cannot run an unapproved modem on the Rogers network. Sorry .... If you're looking for additional functions in a modem/router, you will have to run the modem in Bridge mode and run a router which will provide the functions that you are looking for.
Greetings and welcome to our Community @llc623!
Help has arrived! You've come to the right place. I just want to confirm that I fully understand the issue at hand before I proceed forward with troubleshooting your speed issue.
To confirm, you're receiving your full speeds through your phone but only 100Mbps through a wired connection? Or are you subscribed to Gigabit and you're only getting half speeds on your phone?