We have seen since some time that with Aruba WIFI infra in offices Google Pixel phones basically above Pixel 3a and Moto phones with Android 11 and also Moto G4 Plus running Android 8.1.0 are unable to connect to WIFI. We receive the error message as “Authentication problem" or “Access Point Temporarily Full”.
Why the issue is caused is explained in the below articles.
https://www.xda-developers.com/android-11-break-enterprise-wifi-connection/
The solution to these issues are given in below article by google.
https://support.google.com/pixelphone/answer/2844832?hl=en
The usual step we follow is to select DO Not Validate in the CA certificate option while trying to connect to Corporate WIFI from other phones. However this is grayed out in these phones.
Steps to be followed. Download the certificate from Aruba central, you can do the same by following the steps in below article. From GUI, I did not see the download option. You can further research and let me know in comments if you find a way.
https://www.arubanetworks.com/techdocs/Instant_41_Mobile/Advanced/Content/CLI_commands/download-cert.htm
Next on the Phones download the same certificate and follow below steps to install the same on Phone.
Install a certificate
- Open your phone's Settings app.
- Tap Security
Advanced
- Under "Credential storage," tap Install a certificate
- In the top left, tap Menu
.
- Under "Open from," tap where you saved the certificate.
- Tap the file.
- If needed, enter the key store password. Tap OK.
- Enter a name for the certificate.
- Tap OK.
Once the certificate is installed and you have mentioned a name for the same. Select the Corporate WIFI SSID to connect and choose options as below and try connecting. In CA Certificate option choose as Use system certificates and as we have already saved the certificate on your phone this should work.
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