Sync with Gradle for project ‘XXXX‘ failed: Connection timed out: connect

using android studio synchronization project, I could not download gradle-3.5.1. Pom, after analyzing the image of aliyun every time, I failed and went to dl.google.com

of Google
The

result therefore causes the connection to time out

each time

causes this problem because HTTPS causes it, and commenting out HTTPS will solve the problem

file path to be modified: C:\Users\Administrator\.gradle\gradle.properties

systemProp.http.proxyHost=127.0.0.1
systemProp.http.proxyPort=1080
#systemProp.https.proxyHost=mirrors.opencas.ac.cn
#systemProp.https.proxyPort=80