Long loading to access the Ispconfig control panel

Hello,
Ispconfig version 3.2.5
I have a problem with the slowness to access the control panel, it takes more than 45 seconds.
This after entering the identifiers and pressing the button.
In inspector mode of my browser, I can see a jquery call on the datalogstatus.ph page several times per second.

Same report on the GIT of Ispconfig HERE
Thank you in advance for your answers.

 

Code:

I just checked the ipv6 server is enabled.

sysctl -a|grep disable_ipv6
net.ipv6.conf.all.disable_ipv6 = 0
net.ipv6.conf.default.disable_ipv6 = 0
net.ipv6.conf.eth0.disable_ipv6 = 0
net.ipv6.conf.lo.disable_ipv6 = 0

ip -6 a
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::250:56ff:fe9c:734d/64 scope link
       valid_lft forever preferred_lft forever

Crémos

 

Thanks for your answers, I don't think our DNS server is returning AAAA records to my IPv6 address from Ispconfig.
I will ask the colleague to do AAA registration.
Ispconfig address HERE
Crémos

 

I don't think I changed the TLS configuration on my haproxy and server.
I also checked on (Powered by Qualys SSL Labs) the SSL configuration of my server HERE
I also checked the loading speed of Ispconfig pages HERE

Code:

Lighthouse returned error: FAILED_DOCUMENT_REQUEST.
Lighthouse could not properly load the page you requested.
Make sure to test the correct URL and verify that the server responds correctly to all requests.
(Details: net :: ERR_TIMED_OUT)

Which seems correct (SSL)
Crémos

 

Thanks for your advice, so I have the Haproxy checked.
Do you have a lead on what type of SSL configuration issue is causing the problem?
[The haproxy is in TCP mode]

 

haproxy in tcp mode shouldn't really have any ssl configuration, it should be passthrough, packets should get through haproxy completely unchanged.
although you can have it check that ssl/tls is working properly on the backend webserver.

these links might be helpful...
Using SSL Certificates with HAProxy | Servers for Hackers
apache - HAProxy with SSL passthrough to multiple domains with multiple backends - Stack Overflow
Floating Octothorpe: HAProxy: TLS passthrough with HTTPS checks