Welcome to the Community!
Your modem already has the current firmware version.
Are you having trouble accessing the modem's interface? If you are, then, have you tested using another device?
I'm able to login to my router interface but it's so slow.
For example, I access 192.168.1.1, the website appears immediately.
However, when I enter my credentials, it takes 45 seconds to login.
Moreover, it's slow when I browse sub catalog, for example: Advanced > Wireless > Wireless Settings.
Sometimes I got Error popup and the webpage didn't load correctly. I have to refresh website few times.
The account that we're able to pull up using your community details show that the modem is connected for 2days without any interruption. So either I don't have the right account or you were not able to successfully perform the reset.
To clarify further, please send me a PM with your customer ID or username to ensure that we're looking at the right account.