Thanks for every one!
This issue seems to disappear after the change in config. Our site is more stable than ever before in the last week with a rather short response time during the whole week.
For some reason topics do not display while logged in.
They work fine while not logged in. I cleared browser cache, and tried IE Firefox and Chrome.
This is a fresh install.
VPS Ubuntu 14.04 LAMP setup using Apache as a Proxy. I wonder if the proxy is the issue.
Thank you for your time,
Have you not given them permission to access the topic? Try going to manage categories and changing the viewing permissions for the categories.
I installed nginx and used it as a proxy. It seems to work now. I couldn't figure out what may have been wrong.
I tried older versions of NodeBB and that did not resolve the problem. I have a feeling it's something to do with apache and the way I was setting it up. I'm using virtualmin.
*Setup which did not work
Proxied using these settings in Virtualmin
MENU NAVIGATION: webmin -> server -> apache -> server name -> Edit Directives ->
allow from all
ProxyPass /socket.io/1/websocket ws://127.0.0.1:4567/socket.io/1/websocket
ProxyPassReverse /socket.io/1/websocket ws://127.0.0.1:4567/socket.io/1/websocket
NGINX fixed my problem. I am including this information for others reference.