T-Mobile internet remote password Change

Setup T-mobile internet on my vacation home. When setting up I changed the password and connect my Nest Thermostat and ring doorbell to the T-Mobile internet. Things were great until the Hurricane. System went offline and required a reset. The reset worked, but reset the password back the the admin password and now my Nest and Ring cant connect. I tried connecting to the modem via the IP address, but multiple attempts do not connect. T-Mobile supports states that are not allowed to change password on my behalf. Do I have any options to change this password remotely. I am currently out of the state- HELP !