RB433GL respond to ping, but can't login

Hi guys.
I have RB 433GL in AP mode and one RB800 in station bridge mode connected to it.
I can ping RB433GL, but can’t access it over http, winbox, ssh or telnet. No firewall rules. In the same time can access the RB800 over http, winbox and telnet. Both devices are running 6.31 ROS and v3.24 firmware. If I restart physically the RB433GL I can access it for a few hours and then have the same issue.

Hi, exact same issue here. 6.31 breaks the 433. You need to downgrade. Bad news is you will need direct access to the router to perform downgrade. Reboot the rb433 and as long as there is no traffic through the router it will stay responsive long enough to downgrade.