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DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 82, 24 - Connection drops for 5-10 seconds when these occur
Hello,
Here is a snapshot of the most recent logs. We've been able to match these times to the times where the connection has dropped for 5-10 seconds, which is most noticeable in online gaming but also impacts other services (e.g. zoom). I am aware of multiple users reporting this issue on this forum. I have not found a solution within those threads, but would appreciate being directed to one if it exists. Thanks for your assistance
DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 82 2023/6/26 21:24:41 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 24 2023/6/26 21:24:41 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 82 2023/6/26 20:53:50 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 24 2023/6/26 20:53:50 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 82 2023/6/26 20:19:11 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 24 2023/6/26 20:19:11 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 82 2023/6/26 19:53:39 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 24 2023/6/26 19:53:39 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 82 2023/6/26 19:07:14 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 24 2023/6/26 19:07:14 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 82 2023/6/26 18:48:52 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 24 2023/6/26 18:48:52 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 82 2023/6/26 18:01:15 Critical DHCPv6[12728]: 72001011-DHCPv6 - Missing Required Option 24 2023/6/26 18:01:15 Critical
1.2 Gigabit service, modem info:
HW Version:10Vendor:ARRIS Group, Inc.BOOT Version:4.2.28.668728Core Version:dunfellModel:TG4482AProduct Type:XB7Flash Part:4857 MBDownload Version:7.3.2.0.91
flatlander3
Problem Solver
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1.5K Messages
2 years ago
Is that it for error messages or was that edited?
And what does the signal table look like (line stats for power/snr/errors etc)? If you post a full error log, CM MAC addresses and MAC addresses have to be redacted or the bot will mark it private and nobody will see it.
https://forums.xfinity.com/conversations/your-home-network/internet-troubleshooting-tips/602dae4ac5375f08cde52ea0
It's closed source firmware so it can't be determined how the code flow handles a channel drop, or multiple channel drops, and what happens when they are going down that error path. It might be trying to re-verify a lease when that happens. Time skew from regular intervals on errors (may) suggest it's not just a regular interval -- short duration lease/verifiy issue, and might be triggered by something else.
On a boot when you are not actually connected on gear that has debugging capability, DHCPv6 requests throw those errors when you can't communicate with the DHCPv6 server upstream just because you aren't connected yet.
IF it's only 5-10 seconds dropping, that isn't going to be a spontaneous gateway reboot. It would take longer (minute or two at least) to come back up. You'd see some lights flashing too. Sometimes the lights can be useful for debugging too if you can keep tabs on what they are doing too when this occurs.
Do your dropouts happen on an IPV6 enabled Ethernet connected device too (not just WiFi)? Sometimes it is also helpful to pull WiFi out of the equation for testing.
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