[FS#4214] Netgear r6220 randomly disconnecting from ISP (Attachment added)
openwrt-bugs at lists.openwrt.org
Thu Dec 30 04:43:40 PST 2021
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User who did this - Nigel Reed (nelgin)
Attached to Project - OpenWrt/LEDE Project
Summary - Netgear r6220 randomly disconnecting from ISP
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To -
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - openwrt-21.02
Due in Version - Undecided
Due Date - Undecided
Details - Device: Netgear R6220
Firmware: 20.02 snapshot r18400-f9782f5bcd
After the router has been up a while it will start to lose wan connectivity to my ISP (Frontier FiOS). I'm unable to ping the default gateway. Using my cellular data, I ssh to a remote server and ping the same gateway and it pings fine.
It's only down for a a few to 30 seconds and comes backup usually with the following message
Dec 30 01:07:02 gateway dnsmasq: possible DNS-rebind attack detected: dns.msftncsi.com
There is no indication that the wan connection is down, and the lights don't change.
The ISP sent me a new router which I have now connected up and it's been stable.
I've tried two different R6220 routers, since I have a spare, and that gave the same issues.
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