I have several routerboards 112 with Mikrotik 2.9.27. On few of them, when I log to Winbox and try to ping some clients from router I receive nothing ?! Neither ping timeout nor reply ?! It looks like it's blocked ?! It simply don't work!
It heppening from time to time and when I reboot router everything work fine for some time. Then again it doesn't work.
Clients have net and can ping router but I can't from router? It's very big probem to me, for example, when it stops to work, watchdog tool cant ping wireles interface of router and consider that as a failure, then reboot router.