Thanks for the suggestions. Sorry for the slow response, but I was out of the office for a couple days. I tried all the suggestions, but I continue to get the same errors. More information about the environment. The environment that is not working has a single portal server and a single Gateway. We are using SHA2 certificates. I have tried to configure the portal to use only SSL, not HTTP. When I open Portal using HTTPS, the browser tells me that the connection is insecure and it is using a certificate issued to localhost.localdomain.
Our production and stage environments each have a single portal server and two gateway servers. They are configured the same way, and work correctly.
When I run netstat -tnpl | grep "\(:80\|:37080\|:443\)", I see
tcp 0 0 0.0.0.0:37080 0.0.0.0:* LISTEN 29510/java
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 28463/httpd
I thought the problem could be related to not seeing port 80. However, stage environment, which is working correctly, does not show port 80.
Do you have other ideas?