APs are sending Accounting-Stop directly after MAB authentication.

[ArnoldD]

My wireless APs are currently running 29.6.1.  On some of my networks, I've notice that my aps are sending Accounting-Stop much earlier than they are supposed to.  On my MAB ssid, I have a captive portal set up to send a disconnect request after successful login.  This is when I'm used to seeing Accounting-Stop (after Disconnect-Ack).  Since the stop is being sent too early, (directly after MAB authentication) my radius server assumes they have already disconnected, so it's not sending a disconnect to the AP.  

Has anyone seen this?  I have a ticket open, but I'm curious.

[alemabrahao]

Is the Portal external or is it from Meraki itself? If it is Meraki, how is the Splash frequency configured?

[ArnoldD]

It's external, hosted on Clearpass.  The SSID is configured for ISE authentication.

[alemabrahao]

It doesn't seem like something at Meraki, I would open a ticket with Aruba to validate Clearpass and a ticket with Cisco to check ISE.

[ArnoldD]

Turns out that it's a known issue on 29.6.1, Meraki has suggested upgrading to 30.5.  Testing this today.