"Loading, please wait..." forever

[francemic]

Good morning everyone.
Graylog 5.1 installation was successful except that it only works if the server is connected to the internet.
For my use, however, it must be connected to a closed LAN without internet access. But, in this case, it remains on the login screen with, on the left in the white part, the writing:
Welcome to Graylog
Loading, please wait…

INFO
Ubuntu 22.04
Graylog 5.1
nginx 1.18.0
opensearch 2.8.0
mongo 6.0.7

For the installation I followed the guide in official site Ubuntu installation

and installing nginx server

Thanks in advance for anyone who wants to help me

[patrickmann]

Can you see in browser dev tools which request is hanging?

[francemic]

Thanks in advance
I tried looking but I don’t know what to look for

[francemic]

@patrickmann

see in browser dev tools which request is hanging

it seems to be stuck on this initiator:

plugin.org.graylog.plugins.collector.CollectorPlugin.3d73be4ad22bcd245615.js

But I’ve never enabled plugins, I just installed everything (it was working because I logged in) and then I entered the server in the lan.

[francemic]

Update…
I deleted all plugins from /usr/share/graylog-server/plugins folder
and left graylog-storage-opensearch2-5.1.3.jar (I use opensearch)

Now the page stops at the initiator

app.ec2c9fc60785a65a39e6.js

Please help me!!!

[patrickmann]

@francemic Please restore those plugins - GL uses a plugin architecture itself - these are not optional plugins. Confirm that GL works again when internet is available.

OK, now please reproduce the issue and post a screenshot of your browser devtools network tab. We need more data to understand what’s going on.

[francemic]

Ok.
Plugins restored
graylog-server restarted
Confirm GL works on internet
The highlighted line is repeated approximately every 15 seconds

[patrickmann]

We are working on debugging - sit tight

[francemic]

Ok, thanks a lot for your help

[patrickmann]

We tracked down the issue to overactive offline detection in Firefox.
A fix should be in the next update release:

Unable to login to Graylog on Firefox without network connection

Meanwhile, you can use a different browser to work around the issue.

[francemic]

A thousand thanks.
I installed Chrome and now it works.

Thanks again for your availability and good work.