When navigating to my site, it is no longer accessible and page displays the following error:

This webpage is not available
ERR_CONNECTION_REFUSED

I checked AWS and the instance is running. I've even restarted the instance to no avail. I can't access my admin panel as well.

Hi,
Since the issue is related to server we are not able to provide you steps via forum, so kindly contact us in ~live chat.

Here’s the mail I got recently when I get this problem again
I received the same msg ERR_CONNECTION_REFUSED and was blocked from doing any searches.
(But I could listen to and watch Youtube videos!)
I don't know what your computer said, but I am running Google Chrome on windows 7 and above the message it said to:
1) Click on the Chrome Menu (the 2 bars in upper right hand corner of the Google Home page.
2) go to Settings > then "show advanced setting"
3) click Change proxy settings

4) click LAN Settings
5) UNclick "use a proxy server for your LAN"
Was still getting ERR_CONNECTION_REFUSED
Then closed all windows and programs
REBOOTED PC
Now, everything is fine! (REBOOTING (RESET) IS A NUISANCE, BUT IT HELPS)
I hope this info helps you.
http://www.deskdecode.com/err_connection_refused/

Hi,

Thank you for your suggestion.

Since it is server oriented issue and it depends on the specific server and browser environments.