hi,
i knew adguard is not officially supported on opal,
but i did install it and used it for a long time without problem;
btw, opal work as 2nd router, under a brume W.
however, today adguard blocked all traffic instead.
i have to remove it, and switch to rely on adblock to block some websites that i want to block.
problem solved, just post this as a record.
thanks