IPv6 not working when using OPN but works fine with Adguard ARM

[oscars]

Hi there guys,

I'm struggling to work with ipv6 over opnsense. Currently I use my PI with Adguard for DHCP/Ad Block (Adguard build in DHCP) over the GPON that my carrier provide (telmex, dhcp disabled)

Using this setup I do have ipv4 and ipv6 connectivity. How it seems it works it's that my ISP is giving me a /64 address for each device (tested directly with the GPON router they provide) and this works the same with adguard DHCP.

However I'm replacing my PI to a chinese nuc with OPNsense and when I can't find a way to make work ipv6.

I tried everything so far, SLAAC, changing id, RA, DHCPv6, Send prefix, send lenght, so far I can resolve ipv6 but there is no connecivity (I managed to ping to a ipv6 site and I got the ip of that site back but with no response whatsoever) however I do find my NIC is getting the same settings as with adguard so I'm lost.

Reading the forums seems like it's not only my problem so is this something that isn't currently working as it should?

[oscars]

I'm just so lost.

It seems my LAN is getting another gateway?