[SOLVED] Web GUI Communication Failure After Successful Login

When I try to log into the WebGUI using the admin account and the correct password, it just sits there for a while and finally comes back with "communication failure". The details also only says "communication failure."

I've tried omv-firstaid and that has not helped.

I've tried omv-engined -df and this is my result when I try the web login:

omv-engined[11650]: Child process forked (pid=11650)
omv-engined[11650]: Executing RPC (service=UserMgmt, method=authUser, params={"username":"admin","password":"***********"}, context={"username":"admin","role":1,"_SERVER":{"SERVER_PROTOCOL":"HTTP\/1.1","GATEWAY_INTERFACE":"CGI\/1.1","SERVER_SOFTWARE":"nginx\/1.2.1","REMOTE_ADDR":"::ffff:10.10.10.50","REMOTE_PORT":"54987","SERVER_ADDR":"::ffff:10.10.10.75","SERVER_PORT":"80","SERVER_NAME":"openmediavault-webgui","HTTPS":"","REDIRECT_STATUS":"200","HTTP_HOST":"nas1","HTTP_ORIGIN":"http:\/\/nas1","HTTP_USER_AGENT":"Mozilla\/5.0 (Windows NT 6.3; WOW64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/45.0.2454.101 Safari\/537.36","HTTP_CONTENT_TYPE":"application\/json","HTTP_REFERER":"http:\/\/nas1\/"}}) ...
omv-engined[11650]: RPC response (service=UserMgmt, method=authUser): {"response":{"authenticated":true,"username":"admin"},"error":null}
omv-engined[11625]: SIGCHLD received ...
omv-engined[11625]: Child (pid=11650) terminated with exit code 0

I've even restarted the box to no avail.

Any help would be appreciated.

Unfortunately I only have the admin account for the Web GUI. If I try to login with root it does not work and gives me the "incorrect username or password" error.

Is there a way via CLI to add additional users to the web GUI?

I found on a different thread how to add a user:

useradd --groups users testuser
passwd testuser

Unfortunately the same behavior persists when I try to login with the new user: communication failure.

Thanks @WastIJ.

Do you have any ideas regarding my original problem? (communication failure)

Anybody?

I did the command you sent.

It upgraded from OMV 2.1.16 to 2.1.17.

Unfortunately the problem still exists.

Could it be that there is some timeout that is happening? That after the login, the page it taking a long time to render (gather details, etc.) and that the communication failure message happens because of the timeout?

I have tried the incognito mode and the behavior is the same: Please wait... for 30 seconds, then communication failure.

I could find one place for a timeout from the linked article--/etc/default/openmediavault and I added OMV_HTTPREQUEST_TIMEOUT=180000 and then restarted omv-engined but it didn't seem to affect the timeout. It still waited 30 seconds and said communication failure.

I could not find the second location the user refers to in the linked article.

I did as you said and the error still exists and comes still after 30 seconds.

I'm really stumped on this one.

Any other ideas?

Also, thanks for the help. It's much appreciated.

Well I sort of solved this problem.

I hacked the session.inc file (/var/www/openmediavault/session.inc) and commented the code out that tried to email on the first login. I believe I probably have something incorrect in my email settings that was causing this to hang at this point. Here's the block of code I commented in case someone else has the same issue:

/*
$subject = sprintf("Your user account was used to log in to ".
  "the %s control panel via a web browser.", $prd->getName());
$message = sprintf("Dear %s,\n\n".
  "your user account was used to log in to %s (%s) via a web browser.\n\n".
  "Date and time: %s\n".
  "Remote address: %s\n".
  "User agent: %s\n\n".
  "If you recently logged in to the control panel, you can disregard this email. ".
  "If you have not logged in recently and believe someone may have accessed ".
  "your account, you should reset your password.\n\n".
  "Sincerely,\n".
  "your %s system",
  $params['username'], OMVNetwork::getHostname('--fqdn'),
  $_SERVER['SERVER_ADDR'], date('r'), $_SERVER['REMOTE_ADDR'],
  $_SERVER['HTTP_USER_AGENT'], $prd->getName());
OMVUtil::mail('root', $params['username'], $subject, $message);
*/