Hitron Modem firmware

Hello @hengyu408, and thank you for posting on our Xfinity Community forums.  

The CODA56 is definitely compatible for Next-Gen speeds for up to 100 Mbps upload as show on our Device Info page.  We'd be happy to take a look at your services with you to ensure that you have the correct bootfile and even perform a refresh on the modem if necessary.  

To get started, please send us a direct message* with your full name and service address.  Once we have you verified on the account, we can verify equipment, your bootfile, and run some checks to ensure things are working correctly for you. 

How to Send Us a Direct Message*:
(*Note: Never send a direct message to us unless requested by us.)

1. Click "Sign In" if necessary.
2. Click the "Direct Messaging" icon or visit Xfinity Direct Messaging.
3. Click the "New message" (pencil and paper) icon.
4. In the "To:" line, type "Xfinity Support".
5. As you type, a drop-down list will appear. Select "Xfinity Support" from that list.
6. An "Xfinity Support" graphic will replace the "To:" line.
7. Type your message in the text area near the bottom of the window.
8. Press Enter to send it.

For an example of how to send us a Direct Message, check out this link.

https://forums.xfinity.com/conversations/guidelines/how-to-direct-messaging-within-the-forum/697ba1e570934d009185c514