Vlan tagging radio on rax200

Hi

got an issue with vlan tags on radio. i want to have a different vlan tag for each of the radio bands (2.4 5lower and 5 upper) should have been a straight forward setup but I've noticed (through trial and error) that only one additional tag works

is this by design? Or is it an issue? Does anybody have more than one vlan tag working ?

system lets me have more than one vlan tag but if I have these spread across the different radio bands only the firs one works and the other radio bands don't broadcast

hers what I've tried and the results

setup one

internet tagged as 21

2.4 tagged as 31

5lower tagged as 41

5upper tagged as 51

result only 2.4 band is broadcast but taggin works well

setup 2

disable tagging for 5bands but leave in table

results

all thre radios broadcasting 2.4 tagged as expected, two 5bands default to 21 tag

setup 3

disable 2.4 band 

disable 5lower

enable 5higher

results

only 5higher broadcasts and is tagged correctly

setup 4

all three bands on vlan 31

results

all three radios come up and are tagged correctly

conclusions

only one vlan on radio is supported/working

i could go down macaddress vlan tagging but that's a complete pain