Hi,

Yes I have made a successful connection from Forms configuration page to workflow server using SSL.

When I try to access the https://{FormsServer}/forms/api/help page I am getting a browser prompt to enter the windows credentials. When I enter the right credentials the browser displays the following

First, you should not be prompted to provide the windows credential when access https://{FormsServer}/Forms/api/help ((replace "{FormsServer}" with the Forms server  machine's FQDN) as Forms website should not have "Windows Authentication" enabled, you can check the Authentication from IIS Manager->Sites->Default Web Site->Forms->Authentication:

Second, for the "Secure Connection Failed" issue, you can check whether you can access https://{FormsServer}/forms (replace "{FormsServer}" with the Forms server  machine's FQDN) from the Workflow Server machine first? If not, you need to fix this first before configure the Workflow web service.

Ok I disabled windows authentication on IIS for forms and now I see this page.

Both my Forms and Workflow are running from the same machine. But instead of using FQDN they both can be accessed with our domain name which is *.dialog.lk in the browser.

You should use your domain name to access if the certificate of HTTPS also use domain name. Have you configured the Workflow Server on the Laserfiche tab of Forms? If yes, you can uncheck "use SSL connection" under Primary Forms Server URL and then check it on Forms Server tab to enable the save button and save the settings again, then test access the API from the browser. If you still get error, check the detail error in event log.

Yes our SSL certificate is issued to the domain name. I have configured the workflow server connection in the Forms configuration page with SSL enabled. I restarted all services but I still get the request error. Also on the event viewer I see "Service unavailable because the Workflow Server is not configured in Laserfiche Forms. Please configure the Workflow Server in the Laserfiche section of the Forms Configuration page. [LFF5206-WFAPIAccessDenied]"

But I have added the workflow server in Laserfiche Forms configuration page I got a successful message as well. 

What am I missing? 

You have refreshed the page to make sure the Workflow Server is saved correctly? If you have make sure the Workflow Server on Forms is correctly configured but you still get error message when access the API, you can open a support case and provide the screenshot of the Laserfiche tab and access the API page and provide additional information of your network if there is anything special for the network setup. 

Forms compares whether the IP address of the configured Workflow Server matches the IP address of the incoming request to access the API to determine whether you can open the API page. Some special configuration for network may affect the comparison.

Hey I was able to solve this issue by editing the host file of my server. I pointed the server's IP to our domain name and now everything is working fine :-)

Thank you so much for your help!

What is the "address of the incoming request"? I too am using the hosts file to work around this by guessing addresses until I get the right one, however IT keeps changing it back, because they don't want us to use that address. So what's the deal? I didn't choose the address of any incoming request.

@████████

The address of the incoming request means the value of the host header field in the HTTP/HTTPS request. You can check the IIS logs under C:\inetpub\logs\LogFiles\W3SVC1 and search for keyword such as "Forms/api/BusinessProcess" to search for the requests Workflow call Forms when execute workflow service task. Also please update support case 213406 with the information we requested and we would like to figure out the root cause of your issue. 

I am waiting on the network map, but not sure what other devices on the network have to do with the address of a specific station. I was hoping to access the configuration which sets the address of the incoming request since a station can have more than one address (like this server).

I already know what the address is, I need to know WHERE it is so that I can change it.