I am trying to register a PJSIP server on our office to an Asterisk 11 chan_sip server in a datacenter.

I keep getting:

WARNING[18084]: res_pjsip_outbound_authenticator_digest.c:178
digest_create_request_with_auth_from_old: Host: ‘XXX.XXX.XXX.XXX:5060’:
Unable to create request with auth. No auth credentials for realm(s)
‘asterisk’ in challenge.

Any insights would be appreciated. I have been banging my head for several days now.