Webgui random no response (Have to restart webconfigurator via SSH) 2.2.6

[kapara]

Having some really strange issues with 1 system that I have to continually restart the webconfigurator due to it not being accessible.  I am syslogging all output to a server so I can query any suggestions anyone might have.

Possible issues?

Apr 16 21:28:09 x.x.x.x php-fpm: /services_captiveportal.php: The command '/sbin/ipfw zone 2 mdel ' returned exit code '64', the output was 'ipfw: bad arguments, for usage summary ``ipfw'''

php-fpm: /services_captiveportal.php: The command '/sbin/ipfw zone 2 mdel ' returned exit code '64', the output was 'ipfw: bad arguments, for usage summary ``ipfw'''

[Gertjan]

I'm not using 2.2.6 anymore (its 2.3 show time now for me) , but I guess the code is still the same;
/usr/local/www/services_captiveportal.php :

		/* Clear up unselected interfaces */
		$newifaces = explode(",", $newcp['interface']);
		$toremove = array_diff($oldifaces, $newifaces);

		if (!empty($toremove)) {
			foreach ($toremove as $removeif) {
				$removeif = get_real_interface($removeif);
				mwexec("/sbin/ipfw zone {$cpzoneid} mdel {$removeif}");
			}
		}

Your error indicates me that $removeif contains nothing : ipfw will bail out.
This means that $removeif = get_real_interface($removeif); will return nothing ….. because it's is "non-real" interface.

Have a look at the interfaces you selected for your captive portal : all are ok and do exist ? You swapped NIC's recently ?

Use https://doc.pfsense.org/index.php/Captive_Portal_Troubleshooting to check of the $cpzoneid ("2" in your case) is correct.