Hi
problem devices passing only icmp, not pass anything else
Solution
mikrotik a – dev1 -----dev2 ---- mikrotik b
miktorik A check posibility of /login/download/etc From B
If failed then enable on A 2 min Drop icpm rule on firewall.
i only haven’t got idea how to make script service check on other mikrotik
if … service check fail do ..
Best regards