Back on 42E7 and if memory serves me clients had IPv6 addresses but no IPv6 connectivity only IPv4. Clients IPv6 default gateway was blank, IPv6 DNS settings were present.
I was considering changing the routers mac address to see IPv6 connectivity could be restored but can't afford the testing...
From 41E3 Changelog
* FIXED: stubby: re-add getaddrinfo workaround for MIPS dropped in last release
I have an AC router running 41E6 and DoT works fine but I believe with this fix it also works on the N66U with 41E6
Just loaded most recent RT-AC68U firmware 40EDj9527
Everything seems to be working OK including DoT with Cloudflare
By the way recently upgraded to gigabit internet 1000/35 from my ISP and
router is handling it quite well. Thought I would need a newer/faster router CPU but was pleasantly...
All of John's 40Ex releases have been working great with DoT
on my RT68
As a workaround try using 216.239.35.0 (google Public NTP server) for your primary NTP server
Quite a few changes in the change log from V39. Working fine on RT-68U....web browsing seems snappier with DoT and Cloudlflare!
Hope to see John9527 back on the forum soon!
I also have a Lenovo Flex5-1570 and I changed my wireless card a month ago from an Intel 8265 to an Intel Ax200.
I think your Lenovo needs to have an Intel Gen 7 Processor or newer to upgrade without the BIOS whitelist.
Don't know if this applies across their product lines but it works fine with...
I have to second the performance improvement. Samba performance is what is was before release 37E9. Can't tell from the changelog what change is responsible for Samba share directory reads of 10000+ files to be 3x faster than the previous release.