mkx, thank you for the reply!
I've also got a reply from MikroTik support. They answered that overload messages when using forced-on PoE mode is an issue, that will be fixed in one of the upcoming RouterOS versions.

Hi, mkx!
The cable is about 20 meters long. One cable side is connected directly to RB5009, another side is RJ45 wall socket. Plus one-meter cable from wall socket to hAP ac.

Unfortunately, no, this setup is not working. After "forced POE" turning on I've got a message about overload on RB5009. Message was: ether3-POE detected poe-out status: overload That is strange, as for RB5009UPr with default power supply (49.4V by system health) and specification record: ...

Hi, rushlife! I'd like to reproduce the same setup as in your case: turn my current hAP ac into Wi-Fi access point only and buy RB5009UPr to use it as a main home router. hAP ac I want to power using PoE. So could you please answer: 1. Did you succeeded powering hAP ac from your RB5009 by PoE with 5...

pe1chl, thank you for your explanations. I have rules for accepting only some set of ICMP packets in forward chain.

Hi, pe1chl! Thank you for your answer. I will later create a new topic about FTP and FTP helper as I could not make it work. But I have some additional questions: 1. I always thought that ICMP-packet with some additional information about transferred data will use the same TCP connection, as transfe...

Hi, Mikrotik community. Please help me to find out what means connection-state=related? In numerous manuals over the Internet I saw firewall setup guides, where was recommended to add an accept rule for "established" and "related" connections. I made 2 separate accept rules for e...

Hi, Mikrotik community. Just want to share here my script for updating DDNS record hosted on nic.ru. Maybe someone will need it: Following variables should be filled: 1. interface - interface name 2. domain - your domain name 3. username and password - you will receive them in special site tab for D...