Why I Cannot access eclipse download site from docker container (connection refused)?

Question

I am trying to install eclipse inside a docker container (Ubuntu 22.04, JDK 17) I am trying to use the oomph installer to install the eclipse. Seems like some of the eclipse download sites cant be accessed.

Errors like:

!MESSAGE Connection to https://download.eclipse.org/releases/2023-03/202301131000/p2.index failed on Connect to https://download.eclipse.org:443 [download.eclipse.org/198.41.30.199] failed: Connection refused

!MESSAGE Connection to https://download.eclipse.org/oomph/updates/milestone/latest/compositeContent.jar failed on Connect to https://download.eclipse.org:443 [download.eclipse.org/198.41.30.199] failed: Connection refused. Retry attempt 0 started

!MESSAGE Connection to https://download.eclipse.org/oomph/updates/milestone/latest/compositeArtifacts.jar failed on Connect to https://download.eclipse.org:443 [download.eclipse.org/198.41.30.199] failed: Connection refused. Retry attempt 0 started

!MESSAGE Connection to https://download.eclipse.org/technology/epp/packages/2023-03/202301121200/features/org.eclipse.epp.package.common.feature_4.27.0.20230112-0751.jar failed on Connect to https://download.eclipse.org:443 [download.eclipse.org/198.41.30.199] failed: Connection refused. Retry attempt 0 started

!MESSAGE Connection to https://download.eclipse.org/technology/epp/packages/2023-03/202301121200/features/org.eclipse.epp.package.java.feature_4.27.0.20230112-0751.jar failed on Connect to https://download.eclipse.org:443 [download.eclipse.org/198.41.30.199] failed: Connection refused. Retry attempt 0 started

!MESSAGE Failure reporting download statistics to URL: https://download.eclipse.org/stats/technology/epp/packages/2023-03-M1/org.eclipse.epp.package.common/4.27.0.20230112-0751

!MESSAGE Unable to connect to repository https://download.eclipse.org/stats/technology/epp/packages/2023-03-M1/org.eclipse.epp.package.common/4.27.0.20230112-0751

!MESSAGE Connection to https://eclipse.mirror.rafal.ca/releases/2023-03/202301131000/plugins/org.eclipse.mylyn.wikitext.asciidoc.ui_3.0.42.202201072301.jar failed on Connect to https://eclipse.mirror.rafal.ca:443 [eclipse.mirror.rafal.ca/207.210.46.249] failed: Connection refused. Retry attempt 0 started

But these URLs I can access on the host machine. Inside docker container I cannot access them. Furthermore, I can access and download many other files from inside docker container like jdk from oracle, oomph installer file, eclipse tar file etc.

Why this error?