GSS-API error gss_accept_sec_context: Request ticket server HTTP/ not found in keytab

[Kerberos Enthusiast]

Hello Kerberos,

I am trying to make a windows client authenticate with an authentication
server(using AD machine for KDC) to access multiple services.
There is a multiple keytab file per authentication server.

But I'm facing this error below, while this does not occur every time, it
occurred when sending multiple authentication requests (around 200
requests) for the same service from different client machines while users
are already domain users.


*GSS-API error gss_accept_sec_context: Request ticket server HTTP/ not
found in keytab*
Probability of this issue occurring is around 20% only.

Using GSS-API to acquire cred : gss_acquire_cred().
For loading keytab file : krb5_gss_register_acceptor_idennntity().

How can we resolve this?
Can we use any other GSS-API in place of this?

Thanks,