Why Gradle can't download the dependency?

Began to take a course from emails.ru but got stuck

FAILURE: Build failed with an exception. 

* Where: 
Build file 'C:\_temp\OpenServer\domains\java\atom\build.gradle' line: 2 

* What went wrong: 
Error resolving plugin [id: 'org.springframework.boot', version: '1.5.8.RELEASE'] 
> Could not resolve all dependencies for configuration 'detachedConfiguration1'. 
 > Could not determine artifacts for org.springframework.boot:org.springframework.boot.gradle.plugin:1.5.8.RELEASE 
 > Could not get resource 'https://plugins.gradle.org/m2/org/springframework/boot/org.springframework.boot.gradle.plugin/1.5.8.RELEASE/org.springframework.boot.gradl
 > Could not HEAD 'https://plugins.gradle.org/m2/org/springframework/boot/org.springframework.boot.gradle.plugin/1.5.8.RELEASE/org.springframework.boot.gradle.plu
 > Connection reset by peer: socket write error

Tried to go to the site it redirects to https://repo.jfrog.org/ but there I can only proxy to go directly will not let me. What to do next?
June 5th 19 at 21:13
2 answers
June 5th 19 at 21:15
In General, one of the addresses blocked by the RCN. But there is another address to work, it is necessary in hosts to register repo.jfrog.org
address changes sometimes
June 5th 19 at 21:17
Ask your provider why you can't get on jfrog.org. Or used VPN.
ISP said the address is blocked . - nikita.Stracke commented on June 5th 19 at 21:20

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