Hi there,

I have a T25 that is quite clearly defective (another modem works fine) and need to initiate a return. 

What is the process for requesting in-warrantee support? Live chat is offline even though it’s during listed hours. There is no phone number. There is no email address. I have seen “how to contact support” posts referenced in this forum, but the referenced post is no longer accessible. 

Thank you for any support you can provide.

More context:

My T25 was purchased less than 30 days ago but is outside of the store return window. Performance started degrading four days ago, and now it’s not able to return any signal to Xfinity/Comcast - they cannot see the modem at all. Netgear CM1200 which I was planning to sell works just fine, with speeds of over 900Mbps on our gigabit plan.