[admin@router 6.35] :put [/queue interface get [/queue interface find interface="sstp-out1"] queue]
default
[admin@router 6.35] /interface set [/interface find name="sstp-out1"] disabled=no
failure: non rate limit queues are useless on this interface
[admin@router 6.35]

# Fixes SSTP interface queue not using the default.
/queue interface {
    :local a [find]
    :foreach o in=$a do={                
        :if ([get $o queue] != [get $o default-queue]) do={
            set $o queue=[get $o default-queue]
        }
    }
}

1. Have router with RouterOS version 5.18
2. Create SSTP Client interface
3. Notice that interface queue type is "default"
4. Upgrade router to RouterOS version 6.35
5. Notice that interface queue type is still "default"
6. Attempt to enable/disable the SSTP interface
7. Receive error message "non rate limit queues are useless on this interface"
8. Change interface queue type to "no-queue"
9. Attempt to enable/disable the SSTP interface
10. Everything works fine

• 5.18 to 6.35: Invalid queue type
• 5.26 to 6.35: Invalid queue type
• 5.18 to 6.33: No interface queue and no errors
• 6.33 to 6.35: Correct queue type
• 5.18 to 6.33 to 6.35: Invalid queue type
• 5.18 to 6.35.1: Invalid queue type
• 5.18 to 6.35.2: Invalid queue type

Hello

Did you get this work on 6.44?

default queue type is default-small on 6.44 , i need to put all new dynamic interfaces on startup to ethernet-default or custom pfifo queue type

Can you help me?

Workaround for now:

1. empty queue tree rule
/queue tree
add comment=test name=queue3_test priority=5 queue=ethernet-default
2. Netwatch on remote host ip :
add comment=test disabled=yes host=172.16.1.5 interval=15s up-script="/queue tree set 3 parent=<sstp-sstp_hapmini> queue=ethernet-default