proxy settings disabled but still asking for it when update project from remote repository

Since you are using an older version of IntelliJ, could you update to the latest build?
Please try the 'check connection' option in the HTTP Proxy settings - and see if the connection is successful? You can use any public URL, for example http://google.com

Also, please restart IntelliJ and reproduce the issue again. Take a screenshot showing the error and export your IDE log file (Help > Collect Logs and Diagnostic Data).
You can upload both the screenshot and zip file with logs, here: https://uploads.jetbrains.com. Just paste your uploaded file ID.

I have de latest version now. ( Build #IC-223.8617.56, built on January 26, 2023  ), but still have the proxy problem.

 When I want to Update project I still get the following message:

Upload ID: 2023_02_23_7qzyX3Jx4W8APMxwEGnu7f

Thank you for providing the log file, however, the error is not logged. Could you please enable additional debug logging to troubleshoot the issue further:

• Help > Edit Custom VM Options.. > add following line: 
    -Djavax.net.debug=all
• Help > Diagnostic Tools > Debug Log Settings > add following lines:
    com.intellij.util.io.HttpRequests
 #com.intellij.util.io.HttpRequests
 com.intellij.util.proxy.CommonProxy
 #com.intellij.util.proxy.CommonProxy
• Close IntelliJ and remove the following argument from the .vmoptions file: 
    -Djava.net.preferIPv4Stack=true
• Settings (Ctrl + Alt + S) > Appearance & Behavior > System Settings > HTTP Proxy > select the No proxy option

After setting the debug logging, please restart IDE, reproduce the issue and provide your IDE log file again (Help > Collect Logs and Diagnostic Data).
Can you also try to run the same project update operation from command line (e.g. git bash), outside IntelliJ and see if it works?

Hello,

New debug info file placed in Upload id: 2023_02_27_2BWxAJ5LB1HdHjbLej2wkE (file: idea-logs-20230227-13323114331757009113466916.zip) 

It seems your git client is trying to connect to a specific proxy host (www-xxxx.xx.xx.nl) and fails. Could you try running the update/pull command from git bash directly - without using IntelliJ?
If you get the same error, try to unset the proxy setting in your git client configuration (run following commands in git bash):

cd /path/to/local/repository
git config --unset http.proxy
git config --global --unset http.proxy
git config --system --unset http.proxy

git config --unset https.proxy
git config --global --unset https.proxy
git config --system --unset https.proxy

After running these commands you can verify that there are no more settings regarding proxy by running this command:
git config -l | grep "http"

Then try again to pull the project from git bash and see if it helped.