First time I installed the SDLWeb8 Content Porter and try to connect the CMS and got this error.
any one have solution for content porting connection issue.
Could you please update log information? But in most of the cases this type of error occurred because of wrong domain name.
In Content Porter you need to provide the protocol, port, name and description. So no need to add the http:// or https:// in your server name again.
For example say your cms url is http://cms.testserver.com ,then entering cms.testserver.com is enough as a server name.