UCD invalid or channel unusable modem log

Now we are entering tedium territory.  We found the prior modem that we used, and after getting it setup, evertything seems to be working fine, but now its create the issue of some apps on the tv now no longer recognize that we are xfinity customers, as well as the status center now saying "status unavailable" for the modem itself.

Thank you for keeping us posted, @user_o1bgng and I appreciate you jumping in with some helpful troubleshooting steps, @EG! Did you already have a technician take a look at your setup? I want to make sure the modem you just connected is listed correctly on your account. 

Please send a direct message by clicking the chat icon in the upper right corner of the page, click on the pen and paper icon, then enter “Xfinity Support” in the “To” section. Please include your name and address and I'll be happy to check things out. 

Its been a really long 2 weeks.  We had a tech come over on the 26th, he got us back to square 1 where we were having main signal drops, he said that people would be around within 5-7 days to figure out the main signal issue.  As of today, we had a bunch of xfinity vehicles sitting out front.  believe they spent nearly 2 hours just sitting there, then after the came out, and i feel like i blinked and they were gone, and we still continue to have main signal drops.

@user_o1bgng This isn't the experience we want any customer to have, and for you to still have signal drops for two weeks. My team can definitely help you today, so don't worry. Also, our repair team is capable of working on our network remotely. If anything physical needs to be replaced, then you will see them out of their trucks doing work. For us to look into this further, please send us a Direct Message. To send a direct message, please click on the chat icon in the top-right corner of the screen, and select "Xfinity Support" to initiate a Direct Message. 
Click "Sign In" if necessary
Click the "direct messaging" icon or https://forums.xfinity.com/direct-messaging
Click the "New message" (pencil and paper) icon
Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line
Type your message in the text area near the bottom of the window
Press Enter to send it

I too have the same exact problems. Tech from Comcast came and measured line, everything perfect.

The problem I have with these disconnects is that they are so random it's very hard to put it on my hardware.

10 days ago, I re-registered modem with Comcast using the online Android app. And guess what, no issues, not a single disconnect, for a whole week.

Yesterday, disconnects again...and one after another....today, again, 5-6 times.

Tech, when he came, told me I am the only one complaining. But I just asked my buddy, also in the area (NJ, Clinton), and he also has had similar disconnects.

For me, these issues started after Comcast worked on the street for a week, to "upgrade" things. Since then, I noticed my IP address changed, compared to the one I had been assigned for 10 years before.

Call me stupid...if a lot a people have had the same problem, and they all share one common thing, they bought their own (high end, mind you, mine is Netgear) modem, to not pay the absurd 15 dollars per month rented modem, am I exaggerated to think this is either incompetence on their network upgrade/setup, or it's just a way to push all of us into paying for rent?

At this point I am very frustrated. I pay for Gigabit connection, trying to convince my work place to allow me to work from home more days per week, and I cannot commit to that because of stupid disconnects, with the same hardware that has worked like clockwork for 2 years before this...

@tantiaglaia we are happy to help you. Please send us your full name and complete address in a direct message. 

(Full credit to @BruceW for this excellent explanation!) 

"Search for Xfinity Support" won't work. To send a "Direct Messaging" message to Xfinity Support:

 • Click "Sign In" if necessary

 • Click the "Direct Messaging" icon or https://forums.xfinity.com/direct-messaging

 • Click the "New message" (pencil and paper) icon

 • The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there

 •  - As you are typing a drop-down list appears. Select "Xfinity Support" from that list

 •  - An "Xfinity Support" graphic replaces the "To:" line

 • Type your message in the text area near the bottom of the window

 • Press Enter to send it

See https://forums.xfinity.com/conversations/email/cant-create-a-new-email-address/605e52b726aa974d63032d02?commentId=606107ea738c7f46a02b830e for an example.