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New Contributor


9 Messages

Thursday, February 20th, 2020 1:00 PM

IPv6 Test Modem stuck on "Upstream Ranging"

Hi, a fiber network upgrade just occurred on my Comcast Business line.

I have two modems:

1) the account related business modem.

2) the ipv6 test modem.


The ipv6 test modem no longer connects. It is stuck on "Upstream Ranging".


Can someone contact me so we can reprovision my test modem?


Thank you,



Gold Problem solver


421 Messages

4 years ago

Hi there bitblaster2! Thanks for taking the time to reach out and make us aware of this issue. We'd be glad to work on getting things back online for you; please click on my handle (Comcast_Gina) and send a private message with your name, the business name, the complete service address (including city, state, ZIP, suite number, etc), and the phone or account number, and any pertinent details so we can help.