I have had Xfinity internet for 8+ years. I got TV service last October. Internet never had any major issues for 8 years and still does not. TV had no issues until the last few weeks.
TV set-up:
I have three boxes, a 'main' 4K box, and two smaller boxes. We mainly watch TV using one of the smaller boxes during the day, and a few nights a week, watch that 'main' 4K one.
Problem:
A few weeks ago, the small box TV, that is mainly watched, gave a message about no internet and an RDK number which I did not note. It would not change channels but kept playing the channel on which it was playing previous to that message. While troubleshooting, I checked the TV with the 'main' 4K box. It would not go past the screen saver, giving the same error message as the other, smaller TV box. I rebooted, unplugging power and then reconnecting power, the 'main' 4k box, and it came back fine. The other smaller box then worked fine too after the reboot of the main box.
Recurrence:
After the first time of the problem and reboot, there was no problem for about 5 days. Then it happened again. Reboot and another ~5 days of no problem then it occurred again.
Currently:
Xfinity sent me a new 4K box. I tried installing it today, but after getting past picking a language, it keep giving a connection error, with the code RDK 03004. I chatted with an Xfinity rep for about an hour in trouble shooting. He had me try unplugging and re connecting power two more times.
Same problem both times. He could not reach the box. He got advance tech support from someone he said was in my field and from that check, they concluded the new box was defective.
I hooked the old one back, and it worked fine. I am going to send back the new box, and just see how the old box goes from here. At this time, I will just live with a 5 day need to reboot versus having an in-home visit.
Something else - signal check:
This evening, I learned how to check signal strength in the 'Comcast Labs' menu. On the 'main' 4k box, a signal strength check shows 5 green bars and checks as "Good." On the smaller boxes, when I tried checking signal strength, neither would complete a check. After checking on both smaller boxes, the check stated "Unknown" for status with a message stating something like, a signal could not be checked, please try again.
I do not know if the smaller boxes should be able to check for a signal or if that "Unknown" status is normal for them - perhaps they are clients to the 'main' box and cannot check the signal as it can??
Research:
I researched my problem and found an Xfinity.com forum message thread discussing what seemed the the same problem in a 2018 through 2019 discussion. A lot of people had it with the same 4K box I have - no one reported the problem with non 4K boxes. Many had numerous home visits and box switch-outs but still had the problem. Many of them were having it happen everyday where they had to reboot before watching TV every day.
Some reported the problem all of a sudden was gone one day, after months and months of daily need to reboot, it quit happening. Some said they had a day or two of no service as the plant was down in their area with all customer having no service and after service returned, the problem never happened again. One or two other posters said field techs adjusted their signal, I think both said lessened the signal, and the problem went away.
Help:
Anyone know anything about this problem? Any recommendations?
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