Distribution Server Connectivity Info :
DistributionLastAccessName,
#SERVER-NAME#, 8021, http, Failed, The remote server returned an error: (403) Forbidden.
DistributionServerName,
#SERVER-NAME#, 8021, http, Failed, The remote server returned an error: (403) Forbidden.
DistributionServerIPAddress,
#SERVER-IP#, 8021, http, Failed, The remote server returned an error: (403) Forbidden.
DistributionServerFlatName,
#SERVER-IP#, 8021, http, Failed, The remote server returned an error: (403) Forbidden.
DistributionServerSecIPAddress,
#SERVER-NAME#, 8021, http, Failed, The remote server returned an error: (403) Forbidden.
TCP Port 8021 is unblocked in the windows firewall.
I have got a support case open however its taking frustratingly long for someone to get back to me today and so I thought I would ask here in the hope that somebody might be able to provide some useful information or advice.
The distribution server itself appears with a green status in the Desktop Central console itself and receives the replication requests. I can also see that it has downloaded software from the main Desktop Central.