List of best mirrors for IP address 3.142.136.210, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/raspbian/pool/main/q/qtbase-opensource-src/libqt5network5t64_5.15.15+dfsg-2+rpi1_armhf.deb