Hang up a VPN. After all, the domestic network can only access foreign resources. I recommend you a relatively easy-to-use VPN, ShadowSocks The URL is attached below https://ttt.tt/150/
This is a problem with the Apple server. It seems that it does not allow uploading and downloading from the mirror site (I called and scolded the customer service before, and the customer service said it was for security reasons...) Otherwise, try to surf the Internet scientifically. Recommend SocketPro
Download at 6 or 7 o'clock in the morning. It's smoother at this time. That's how I downloaded it
Hang up a VPN. After all, the domestic network can only access foreign resources. I recommend you a relatively easy-to-use VPN, ShadowSocks
The URL is attached below
https://ttt.tt/150/
This is a problem with the Apple server. It seems that it does not allow uploading and downloading from the mirror site (I called and scolded the customer service before, and the customer service said it was for security reasons...) Otherwise, try to surf the Internet scientifically. Recommend SocketPro