Wifi often not receiving IP address

[Kryptonite]

Hi guys
I need some help. I recently upgraded. I recently upgraded my Fortigate 100F to the 7.2.4 version. At the same time I also upgraded my FP431F to the latest version (7.2)
I currently run a setup with two different wifi networks both in tunnel mode. We have a guest network that is running fine without any issues, but there is also a corporate network that is having some weird issues. Sometimes when you try to connect you do not receive an ip address at all and sometimes you do, but after a few minutes it is gone again. I checked the dhcp scope and there should be plenty of IP addresses left.
My thinking is that it has something to do with the ipsec tunnel the corporate network has access to. That's about the only difference between the two. Is there someone who can assist ?

[Kryptonite]

Hi  @gfleming 

Sorry for the delay, but only had time today to the traces. I can't seem to find an option to upload the traces and they are quite long to upload as a code snippet. How do you guys usually share this ? 

[gfleming]

There are many ways of doing this. You may upload to cloud storage somewhere and provide a link. Attach as a file to the your reply here on the forum (Max size 5MB).