How to properly configure Gradle dependencies with Offline Work enabled?

Question

Android

I will say right away that I work in a university network, so some sites are cut for me. Initially, the problem was this: when opening the start project, the error Error:Connection timed out: connect took off. Ok, googled how to fix it. The solution was to download the gradle-3.3-all package and set the Offline Work option in the Gradle settings. But now, when trying to build the project, Gradle gives errors:

Disabling the Offline Work option does not solve the problem

Answer 1

Gradle can't pull dependencies. You did not cure the problem with an offline mod, but hid the symptoms.
The solution... well, maybe you can pull up a local maven repository and put all the dependencies there, put it in build.gradle:

buildscript {
    repositories {
        maven {
             url...
        }
    }
}

Answer 2

in the university network, I suppose, a proxy? and you need to configure it in the gradle to let it in?
and so, if you follow the path proposed by Denis Zagaevsky , then artifactory can be a caching repository, for example.