GlobalProtect Client fails to connect due to client certificate error after upgrading to GP 6.0.5 or later in iOS devices

• GlobalProtect (GP) client upgraded from 6.0.4 to 6.0.5 in iOS device.
• After upgrade, the GP Client fails to connect to Portal/Gateway due to a client certificate error.
• The error is seen in PanGPS.log

10:36:29:097 Debug(7351): ----Portal Pre-login starts----
/snip/
10:36:29:334 Info ( 647): Server is trusted xxxxxxxx.gpcloudservice.com(xxxxxxxx.gpcloudservice.com)
10:36:29:336 Debug(1038): Received challenge NSURLAuthenticationMethodClientCertificate, queue [NSOperationQueue 0x102d26210 (QOS: USER_INITIATED)]
10:36:29:338 Debug( 742): credentialWithIdentity chain count 0
10:36:29:338 Info ( 792): Using preset identity
10:36:29:339 Info ( 895): Final identity: [xxxxxxxx.com]
10:36:29:340 Debug( 510): Unable to extract extended key usage from cert <cert(0x102a52210) s: xxxxxxxx.com i: xxxxxxxx.com>  
10:36:29:340 Error( 340): Identity <SecIdentityRef: 0x102a11db0> usage mismatch 
    KeyCertSign
)
10:36:29:340 Info ( 904): Final identity cannot be used, cancel
10:36:29:343 Error( 537): Connection error Error Domain=NSURLErrorDomain Code=-999 "Canceled" UserInfo={NSErrorFailingURLStringKey=https://xxxxxxxx.gpcloudservice.com:443/global-protect/prelogin.esp, NSLocalizedDescription=Canceled, NSErrorFailingURLKey=https://xxxxxxxx.gpcloudservice.com:443/global-protect/prelogin.esp}
/snip/
P 707-T3843  01/30/2023 10:36:29:355 Debug( 421): m_errorDetails is Client cert usage check failed.  
P 707-T3843  01/30/2023 10:36:29:355 Debug(7515): prelogin to portal result is 
(null)
P 707-T3843  01/30/2023 10:36:29:355 Debug(7839): Failed to pre-login to the portal xxxxxxxx.gpcloudservice.com with return value 0(0).

• GlobalProtect (GP) App
• Version 6.0.5 or later
• iOS device

• The key usage check for a client certificate has been added into GP 6.0.5.
• The client certificate should have a "extended key usage" with "Client Authentication" (OID 1.3.6.1.5.5.7.3.2)

1. Configure the Client certificate which has "extended key usage,
2. After configuration, the connectivity should work fine.