Hi,
from the log extract I have seen I want to add that you should check the address of the connection server you entered in the web server configuration.
I understand you entered a DNS name here, what in theory should be fine. Did you try to enter the IP address instead?
Regarding certificate names and DNS names, for CoS they do not need to be identical, also I would consider it best practice to keep it that way. The DNS name becomes relevant if you are using https, as then the certificates CN has to be the same as the DNS name you open eg. CDT from.
Regards
Alexander