Certificate changes for your NAV Mobile Client:

If you’ve been getting the below error

Server Connection timeout occurred.

In your NAV Mobile client, the likely root cause is the SAN (Subject Alternative Name) in your Certificate.

If you have the cert created via the below PowerShell script. This means only fs.<IP/Domain> will be trusted by Google (and Android App). This typically happen with SAN(subject alternate name) certs.

Import-Module ‘C:\Users\vmadmin\Downloads\New-SelfSignedCertificateEx\New-SelfSignedCertificateEx.ps1’

New-SelfSignedCertificateEx -Subject ‘CN=<IP/Domain>’ -IsCA $true -Exportable -StoreLocation LocalMachine -SubjectAlternativeName certauth.fs.<IP/Domain>, <IP/Domain>

You can download the New-SelfSignedCetificateEx.zip file from here :


Then please review the below information:

  • Check the certificate, if you have “Subject Alternative Name” or not

  • If not, then it is recommend you to create the certificate using the above PowerShell cmd

(the values in the above cmd should be changed based on your system)

If you’ve any further difficulties, please feel free to write back to us.


Happy NAV usage.
Team Genie@CETAS.