I just update RoS 6.2 to RoS 6.3 and after update I lost all my firewall rules (IP->Firewall->Filter rules), so my RB becomes an open proxy (WebProxy was activated without any access policy - my fault). I added rules manually and I’ll see what happens after next reboot.
in such situation, it is important to make a supout.rif file, send to support, and only then proceed with configuration. as we can’t repeat this, and nobody else has reported this, we can’t say for sure what happened to your router.
Did you connect with Winbox or Webfig? Maybe the rules just hadn’t loaded in the web interface (slow link)?
Thanks for Your answer. I will send supout.rif to support. And yes, I did connect to Winbox. Everything else worked perfect. I tried to scan some ports from other network and without firewall rules they were opened, not filtered.