A failure of cloning code with "Bash here" on windows(RESOLVED)

As is shown above, I use the following command to clone code
git clone -b Copter-3.5.6 https://github.com/ArduPilot/ardupilot.git

and the speed of cloning is very slow, only several Kb/s sometimes
At last, there will be some error messages as following:
error: RPC failed; curl 56 OpenSSL SSL_read: SSL_ERROR_SYSCALL, errno 10054
fatal: the remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed

or as following:
error: RPC failed; curl 18 transfer closed with outstanding read data remaining
fatal: the remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed

I have tried four methods but they all didn’t work :

  1. git config --global http.postBuffer 5242880000
  2. git config http.sslVerify “false”
  3. git init
  4. add “–depth 1” after the git clone command

I don’t know why,the clone went smoothly last semester.

Maybe the campus wireless network has more restrictions this semester?

As the title shows, I have resolved the problem by myself.

The problem is the campus network I used, if I use the mobile data of my phone, there will no error.