try changing your queue from hardware to ethernet-default

/queue interface set [find] queue=ethernet-default

In the example above guest will be on VLAN99 and Corporate LAN+Unifi Management users will be on the Native VLAN100. Then it's just a matter of assigning a new DHCP server to the guest VLAN and creating the necessary firewall rules to ensure traffic is separated. As an alternative to vlans, you can ...

I do the same thing... #send vlan 99 & to the Unifi /interface ethernet switch egress-vlan-tag add tagged-ports=ether16,switch1-cpu vlan-id=99 #any packets arriving without a tag (inside wifi & unifi management traffic) tag with vlan 100 /interface ethernet switch ingress-vlan-translation ad...

Heard back from support, changing the queue type from hardware to ethernet-default has fixed it. Speeds went from 3Mbps to 180Mbps just by running the command below. Seems to be this should be set as default or better documented.

/queue interface set [find] queue=ethernet-default

Before doing the tests, I did a configuration reset and put in just the minimal VLAN example. I didn't have any ports activated except the two workstations. CPU on the switch didn't go about 10% the entire time so I don't think it's a CPU bottleneck. Interesting enough, the iperf was defaulting to a...

Yes it is only routing within the CRS. I'm not too worried about the 77.4 Mbps speed but 5.41 Mbps when the interface is set to Gig, that's the issue.

I am trying to troubleshoot slow transfer speeds between two VLANs using iperf. This only happens when one side is set to Gig speed. Anyone seeing the same thing or suggestions? Simple layout: IMAC1 (VLAN100) -> CRS125 -> IMAC2 (VLAN101) Test 1: all ports and adapters set to auto-negotiate. Confirme...

There's a known bug in 6.12, adding some VLAN options causes the switch to hang on reboot. It's probably not bricked, you can probably reset the config using a serial cable or holding the reset button. Here's the bug:

http://forum.mikrotik.com/viewtopic.php ... 50#p421493