So, there's a few things to check: As you mention web clips, I assume Apple devices?
1. APNS: Check that your APNS cert is still valid: Organisation > MDM
![Screenshot 2023-11-28 at 14.15.36.png Screenshot 2023-11-28 at 14.15.36.png](https://community.meraki.com/t5/image/serverpage/image-id/34270i7B2FB22FEBA8F632/image-size/medium?v=v2&px=400)
2. If that's all good, pick a device that you know to be good from the device list and click on it. Scroll down to Online Status : What's the status?
![Screenshot 2023-11-28 at 14.17.48.png Screenshot 2023-11-28 at 14.17.48.png](https://community.meraki.com/t5/image/serverpage/image-id/34271iF0D63C5385229328/image-size/medium?v=v2&px=400)
3. Scroll down to your Activity log: when was the last time the device(s) checked in?
4. Go to Organisation > Change Log Have a look to see if any changes were made (especially around WiFi, as @BlakeRichardson mentioned )
Report back with your findings.