Troubleshooting Tip: Android displays 'ERR_NAME_NOT_RESOLVED'

[cmaheu]

Description	This article describes the behavior where when isolated, Android shows 'ERR_NAME_NOT_RESOLVED' and references an old portal FQDN.
Scope	Versions 8.x and 9.x.
Solution	1) Review the Web service definitions as defined in the Captive Portal assistant reference manual: https://fortinetweb.s3.amazonaws.com/docs.fortinet.com/v2/attachments/b0560ae0-08a9-11eb-96b9-005056... Ensure the Samsung Android Requested URI is referencing the correct FQDN: Example: Requested URI .gen._204.* Forward to URL http://fortinac.oldportalname.local   <----- Old portal FQDN. The Portal name is located in the Portal SSL view in the GUI. 2) If there is an old entry, delete the entry and re-add with the updated portal SSL name: Example: Requested URI .gen._204.* Forward to URL http://fortinac.bellcounty.texas.gov  <----- Current portal FQDN.