Is This a Possible Bug (Updates fail if have wan ipv6 gateway enabled)

[walkerx]

Hi,

I recently moved to ZEN from Sky and have had to rebuild my Opnsense setup from scratch as for some reason things would not work with a straight switch from Sky MER to ZEN PPPoE. I even performed a reset of the configuration and imported my settings but this still caused problems and then found out every time I tried checking for updates it would fail with authentication issues and plugins became listed as orphaned

So I performed a full rebuild and manually slowly entered all my settings again and found that i when i added the ipv6 wan monitoring gateway I was unable to use the firmware updates but when I disabled the gateway I was able to use the firmware updates.

I tried this on the february build of 19.1 and also after updating to the latest update for 19.1 and the problem still occurs.

So is this a bug or something else the cause of this, ideally I need to get the ipv6 wan monitor working so I can add ipv6 dns entries in the general settings area of opnsense

[osn1803]

I encountered this, and in my case, it's because the IPv6 gateway was not actually working. 

There is a setting under System->Settings->General which says "Prefer IPv4 over IPv6".  If you select that, and updates start working again, my guess would be that IPv6 is not correctly configured or is otherwise broken. 

Just a thought.