Installing unbound_1.16.0rc1 over the top of the current install (unbound_1.15.0) it fails when started
29/05/2022 15:32:12 C:\Program Files\Unbound\unbound.exe[12244:0] error: setsockopt(…, IPV6_MTU, …) failed: Bad protocol option.
29/05/2022 15:38:02 C:\Program Files\Unbound\unbound.exe[1192:0] error: setsockopt(…, IPV6_MTU, …) failed: Bad protocol option.
29/05/2022 15:40:01 C:\Program Files\Unbound\unbound.exe[9700:0] error: setsockopt(…, IPV6_MTU, …) failed: Bad protocol option.
With verbosity 4:
[1653835814] C:\Program Files\Unbound\unbound.exe[12340:0] debug: winservice - apply cfg
29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: setup SSL certificates
29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: Adding Windows certificates from system root store to CA store
29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: Completed adding Windows certificates to CA store successfully
29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: winservice - open ports
29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: creating udp6 socket ::1 53
29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] error: setsockopt(…, IPV6_MTU, …) failed: Bad protocol option.
Edition Windows 10 Pro
Version 21H2
Installed on 04/04/2022
OS build 19044.1708
Experience Windows Feature Experience Pack 120.2212.4170.0
RayG