I have a router for internet and I connected both a hEX PoE and a Windows PC to the router. The Windows PC is getting an IPv6 address:

If I run the packet sniffer and stream the packets I can see the RA packets coming in on the Mikrotik’s ethernet port:

And yet the Mikrotik doesn’t get an IPv6 address and I’m unable to ping any IPv6 address:

What else can I check?