UCS does not propose me updates anymore

Hello,
I have UCS 4.3-3 errata 448 and I do not see anymore release or package or app center updates.
Can you explain me why?
Thanks in advance,
Mario

The update check is normally run as a cron job. First let’s make sure the job is actually executed. Please post the output of:

journalctl --since '1 week ago' -t CRON | grep univention-updater-check
systemctl status cron.service

Thanks for reply.
From the output it is clear that univention-updater-check is run many times a day.
I tried also with apt update ; apt dist-upgrade and I see that there are no new packages and that packages lists stops at 4.3-3

Try:

ucr commit /etc/apt/sources.list.d/{15_ucs-online-version,20_ucs-online-component}.list

What’s the content of both files after having run the command?

What happens when you run univention-upgrade manually — does it offer to install package/errata updates?

Hello,
I will provide both file, meanwhile I see that univention-upgrade gives me:

The connection to the repository server failed: Configuration error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:661). Please check the repository configuration and the network connection.

The two files are made only by commented lines.

That seems to be a common occurrence for one reason or another. Please run:

update-ca-certificates
ucr commit /etc/apt/sources.list.d/{15_ucs-online-version,20_ucs-online-component}.list

Afterwards both files should contain regular APT package repositories again.

If that doesn’t fix the issue: are you using some kind of web proxy server between your UCS server & the internet? Either explicitly (by having set the UCR variables proxy/http and proxy/https) or implicitly (as a transparent proxy scanning all web traffic)?

Thanks I have learned a new thing.
I have no proxy.
Anyway now it works thanks!!