FWA505 - can't connect more than 32 devices

Sugar

I have separated 2.4ghz and 5ghz wifis SSID. In total it's not possible for me to connect more than 32 devices for both frequencies. What is the true limit of devices for that model?

Edit:

I just found similar topic:

https://community.zyxel.com/en/discussion/30710/fwa505-max-clients-32-instead-64

Thank you.

Sugar

https://drive.google.com/file/d/1ojFF4rC5hlIuatwtAYv7IP6PQHo5f3DQ/view?usp=drivesdk

So my phone can't connect due to limit of devices.

Serial Number S230Z43010273

Firmware: V1.60(ACMO.2)C0