Markmaster
Regular Contributor
Problems are time to time rise. First logs are from earlier Firmware, but now it's the latest "legacy" version for my hardware.Maybe your router is dead, but it’s hard to tell after looking through all those syslog lines from dnsmasq. The most recent entry was from Aug 22, so is that when your trouble started? If you get the router working again, post your DNS configuration to help cleanup those log messages. It seems the syslog you posted was from firmware earlier than 39L3 because @john9527 improved the insecure DS reply message in 36E5j9527.
For those DNS you asked: nothing special. Auto or Google DNS.
I asked my ISP's service engineer about maybe specific error to my router and their switch, but they told me that is all ok on their side.