Hello!! this is my first post!!

I'm was struggling with a VLAN setup for two days now, I wanted some of the VLANs to have access to Winbox.
Internet, DHCP and DNS was working fine but Winbox was not working in any of the VLANs I created, only SSH, I also tried bridge filtering them but that did not help either.

I was using a OSx (Mojave) VLAN virtual interface for testing, when I created a VLAN access port on a switch connected to the RouterOS device via a trunk port Winbox was working fine.
If you are testing a VLAN with OSx virtual interfaces try using access ports instead.

If anyone has some insight about what was going on I would like to hear about it, this is not an important issue but I find it interesting.

No idea

1. network diagram

2. Post config

/export hide-sensitive file=anynameyouwish

Faced the same issue, you have to set the MTU of the macOS Virtual Interface to 1496 or less, thanks to its Advanced / Hardware tab.

Or set your RouterOS VLAN interface MTU to 1496, which also works, and makes more sense / things easier.