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3 Messages
Wifi dropping out multiple times a day, many "Consecutive T3 timeouts" Error Log
Hello, I am pretty good with technology, but only somewhat familiar with networking so you may need to ask me for more information.
The problem: Ever since I moved into my apartment last August, my wifi has been dropping out multiple times a day, seemingly randomly. It seems to have gotten worse. It only stays out for between 3 minutes and 12 minutes, and restarting the router/modem does not effect how long it takes to come back online. If I had to guess, it happens about 4-6 times a day average, and as much as 20 times a day maximum. Devices on both the Wifi and plugged directly into the Router lose connection. I have a Netgear C7000v2, which is a combo Modem/Router, and it is updated to the latest firmware.
I have done the following troubleshooting steps: restarting the router when the problem occurs, not using a splitter on the wall jack, resetting the router to factory, updating the router, contacting Xfinity support (four times) and they "refreshed the signals", and looking through the router settings for any reason why it wouldn't be functioning correctly, to no avail.
Here is the event log: https://imgur.com/a/VUVIBce
Here is the upstream and downstream channel signals: https://imgur.com/a/HdbI48b
The Wifi dropped out at about 10:50am, 11:10am, 11:25am, and 12:18pm.
In the event log, I see there are a lot of consecutive T3 timeout errors. Although I do not have access to a second known-good router to test, I have noted that even while the wifi is down, the router itself can still be accessed as Admin within the local network and says that its connection is not functional, suggesting to me that the problem lies somewhere else. I attempted to find the SNR, but I was unable to on my router. If you would like that info and can help me find it, I would appreciate it.
Thank you in advance for the help!
Accepted Solution
jarembry
New Poster
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3 Messages
4 years ago
Hello, this is the original poster. I just wanted to share that these T3 timeouts were due to a splice in the line that had gone bad. The tech that came out followed the data cables up onto a telephone pole on the street and told me that he could tell that cable had been "pulled down" previously, and that the splice didn't look good (I assume it had been damaged again afterward). He replaced the splice and my internet issues have been 100% fixed. I was hesitant to call the tech out because I didn't want to get slapped with the $100 fee if it was within my house, but all my internet troubles were fixed in a matter of two hours.
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NCSF
New Poster
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1 Message
4 years ago
I am having the exact same situation whereby my internet connection freezes and drops packets randomly throughout the day. It's been going on for over 6 months. I've had several techs come to change the wiring, splitters, grounding, and eve changing the wire from the tap on the street to the house. I've even rebuilt the OS on my computer, purchased a new modem and wifi router as their support tells me it must be your personal equipment. None of these resolved my the intermittent drops. That's great that you were able to identify the T3 timeouts. It wasn't until I contacted Netgear that they say T3 and T4 timeouts are line issues with the ISP. I finally had a tech come out that was honest and said that the shared bandwidth of the neighborhood was over subscribed and he showed me the meter with over 90% usage. Until Comcast pulls more backbone lines to the neighborhood and rebalance the user load, we will continue to have problems. It's gotten worse whereby internet connectivity is totally lost between 12am-7am and I need to reset my modem several times a day due to uncorrectable errors and packet loss
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XfinityAmira
Official Employee
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4.2K Messages
4 years ago
Hello @jarembry, thanks for reaching out to us on our Forums page. We appreciate you being a customer with us and for updating us on the fix to the issues you had been experiencing. We're delighted to hear that those issues have been resolved and your connection is back to being steady and solid. Please be sure to reach back out to us for any future issues or concerns. Thank you!
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jarembry
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3 Messages
4 years ago
I really hope that tech was incorrect, that seems like a terrible business practice for Comcast. As you can read in my reply to my original post, I can confirm that my T3 timeouts and internet outages were all due to a damaged data cable just across the street from my house. I don't know enough to tell you about whether T3 and T4 timeouts can be caused from oversubscription, but I can tell you that my issue was fixed by repairing the line. If Comcast can't find and fix the problem or if they are oversubscribing in your area, maybe you'll have to switch providers for a while. I hope you get things sorted out!
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