Timeout during loading timezone page

[Cedric_35]

Morning everybody,

I come to you because i've a problem with my Zabbibx Install.
When i go to the "Administration > General > Gui" page, the page is loading and block on the "default time zone". It freezes and i can't do anything on this page.

I don't understand. I met this problem on an old installation after an upgrade. So i've decided to do a new clean fresh install. I've tried to install V5.4 then, the alpha 6.0. During this installation, i had the same problem... So i've done a clean fresh install of the host (Debian 10 & 11). Always the same...
So i've need to install the 5.0 version (installation ok), then i do un upgrade of my zabbix environnement to the wanted version. But now, everything is working, except when the timezone is necessary.

I cant' add a user, change the default langage, etc.

I think that Zabbix isn't the problem, but my Apache, PHP environnement. And search but i haven't found a solution yet.

Is someone having the problem and succed to solve it?

My host host is Debian 11, with Apache 2.4.51 and php 7.4.25 and MariaDB10.5.12. And the Zabbix version is 6.0.0alpha6.
Just to say that i had the same problem with Debain 10.5 with Apache/PHP/MariaDB up to date with the offical repository, and Zabbix 5.4 up to date too.


Thanks for yo help

(PS: sorry for my poor english, i'm a just a little french guy who does lots of mistakes... in french too )

[Cedric_35]

Hi everyone,

I come back because i found the solution.
Nothing to do with my Zabbix installation or Debian version.

I have my server on a specific VLAN and my workstation on an other one. My firewall routes packets between each others. To improve my security, i do specific rules on order to authorize only necesseray trafic.
I do a rule between my workstation and server which work fine except for this page. If i run my server on the same VLAN, the page is loading completly.

I remembered that i've met this problem with some rules, because of the IPS (inspection trafic) on my firewall.

I modified my rule to not inspect the packets, and after that, i work perfectly...