Certain clients can't connect with ft enabled

I've been installing quite a few ax devices (2,3,S) mostly on LTS 7.21.4 and certain clients (mostly specific tvs and ipads) have been having trouble connecting. Either giving "wrong password" or just "Failed to connect". Turning off ft in wifi security has resolved the issue every time.

In mikrotiks YouTube video on fast transition https://youtu.be/vkWPlsuyuKE?si=yRc9PhvvBi9tcd8l

They claim there is no reason to not turn fast transition on. This is certainly not true. They even say the setting is enabled for seamless transition between bands, which i believe is 802.11 v (which is not ft/bss 802.11r)

Does this setting enable all of 802.11 k/v/r?

If the issue is purely client related maybe using a seperate setting for v would be beneficial

I'm not sure why these certain clients have connection issues with ft enable as I've yet to run into this issue with other vendors wifi using their 802.11 k/v/r. I will see if i can get a supout to file a ticket. But in the meantime if you have a client that refuses to connect ft may be your issue.

actually this setting just controls 802.11r which some old old devices have issues with!

802.11k/v is setup using the settings under steering:

rrm/wnm

(both default to on)

Great to know! The weird thing to me is none of these devices are actually old. I think 2 of the smart tvs were actually brand new (one Samsung, one lg).

I saw a Cisco recommendation to create a new ssid without the bss turned on but when i tried that (at least with the same ssid) my phone wouldn't automatically choose the ft network. I could name them differently but a lot of the customers are very old and simple is best and trying to explain what the difference is between the two networks is can be a nightmare.

if you dont REALLY need FT then just use k/v. Its the recommended setup for Homes anyway :smiley:

And yes i guess TVs have a bad wifi stack (my android boxes work with FT though :confused: )

Some customers i pads work others don't. My brand new lg tv works that customers didn't. Really bizarre, all up to date on software as well.

Most houses just use one router so no FT isn't the end of the world, but others i use capsman with 2-5 aps. In which case it is really beneficial...

In the ft video from mikrotik they do mention you need ft enabled to have the seamless transition between bands on the same router. I guess with only k/v you will have a short drop switching between bands but the router will try to always steer you to the best band(ap)

ahh for the ipads you can try the following. it really helps!

I have 2 ipads here that work fine (ipad mini 4 i think and ipad air m4. And a bunch of iphones)

dtim-period=3 <- This helps with power saving (some apple devices HATE APs without high dtim)
connect-priority=0/1 <-This helps with roaming between APs

Also, this is correct!

For what it's worth, the NetGear stuff my MikroTiks replaced did the same thing. The clients are what is stupid (and I simply created a secondary SSID for the dumb ones . . .)

(RB5009 and 4 AP's here . . .)

That is normal. Old crap that does not support FT will have this issue. Although by now one would expect most of it to be upgraded or dead. You need to turn off FT or have a separate SSID for those devices without FT.

Probably not relevant but just for info:
AX2/AX3 and hAP AX S use DIFFERENT wifi drivers (qcom for the former, mediatek for the latter).
So don't rule out differences there either.

But pe1chl's comment is correct. Old Wifi stuff will quite often have problems with it.
As usual, most wifi problems are client problems, seldom AP problems.