Quote from: NotFuzzyWarm on May 22, 2017, 03:09:31 PM

Quote

And it (flashing to latest firmware) is recommended for all Ant devices as far as I know.

Perhaps recommended by Bitmain, but NOT recommended by us users!
Flashing to latest firmware is always a last-resort move.
As the saying goes, " If it ain't broke... " but in this case, yes, flashing to latest is the next step.

opkg is not Bitmain

https://wiki.openwrt.org/doc/techref/opkg
Upgrading packages is generally NOT recommended for most users, because a typical OpenWrt system stores the base system in a read-only SquashFS partition.

We can try at least there are no other way to solve it.

Quote from: Helfred on May 22, 2017, 03:00:29 PM

How can I flash a firmware through SSH ?

Nice question ) Possible but quite complex.

Can you run
/usr/sbin/lighttpd-angel -f /etc/lighttpd.conf