u/Nhord

Hi,

I would like to know if I'm the only one with ipv6 issues over ebox?

Many websites like microsoft.com and hydroquebec.com do not load.

These websites do ping in v6 but for some reason they do not load properly in my browser ; which is true on windows, linux and every browser I have tried.

MTU has been adjusted to a lower value (1432) without any result.

Anybody else has this issue?

Edit :

I think I have found what's going on and it seems to be an issue with opnsense. On the WAN interface, set the MTU and (most importantly) the MSS to 1492.
https://github.com/opnsense/core/issues/9398
Use this site to test your config : http://pmtud.enslaves.us/