Revoke access with Microsoft Entra ID

IanEllis

I found yesterday the instructions on how to set up Microsoft Entra ID to authenticate users on a SSID.

We are a school and let Staff and Post16 students on our BYOD wireless and this works great for that as we configure the Entra App to authenticate those groups.

However, if I want to remove someone's access I remove them from the group but it doesn't revoke their access to the Wireless.

Rebooted several times, it never asks them to log on to Entra or just removes access.

Any idea how to do that please?

Thanks.

Zyxel_Judy

Hi @IanEllis ,

Based on your description, we believe the issue is that although you removed account A from the Microsoft system, it can still connect to the wireless network.

We suspect this is happening because the captive portal's lease time has not expired, allowing account A to maintain its wireless network connection. To resolve this issue, you can either shorten the lease time or wait until the current lease expires. After that, account A will no longer be able to connect to the wireless network.

Zyxel_Judy

Hi @IanEllis ,

Based on your description, we believe the issue is that although you removed account A from the Microsoft system, it can still connect to the wireless network.

We suspect this is happening because the captive portal's lease time has not expired, allowing account A to maintain its wireless network connection. To resolve this issue, you can either shorten the lease time or wait until the current lease expires. After that, account A will no longer be able to connect to the wireless network.

IanEllis

Hi,

Thanks for the reply.

I didn't know where the lease time was set but I then since found it.

Site-wide —> Configure —> Site settings

If anyone else is looking for it.

Thanks,

Ian.