I install python package as usual while specify a pip source, yet the behaviour is out of expectation.

While on Windows the command python -m pip install pip==23.3.2 -i https://pypi.tuna.tsinghua.edu.cn/simple runs quickly, I encountered issues with it on WSL. To rule out network bandwidth as the cause, I cloned a Git repository, which performed at normal speed. Additionally, I confirmed that both echo $http_proxy and echo $https_proxy return empty values.

I have reviewed relevant issues on GitHub:

• Issue 4020
• Issue 4901

Steps I have taken so far:

1. Upgraded from WSL1 to WSL2.(not working)
2. Upgraded from Ubuntu 22.04 to Ubuntu 23.10. (not working)
3. Edited C:UsersYOURUSER.wslconfig. (not working)
4. Reinstalled Conda.(not working)
5. Tried using a mobile hotspot instead of Wi-Fi. (This worked, and pip install pip==23.3.2 -i https://pypi.tuna.tsinghua.edu.cn/simple was fast. However, I need to resolve this issue for my Wi-Fi setup.)

(base) czfzdxx@czfzdxx:~$ hostnamectl
 Static hostname: czfzdxx
       Icon name: computer-container
         Chassis: container ☐
      Machine ID: xxx
         Boot ID: xxx
  Virtualization: wsl
Operating System: Ubuntu 23.10
          Kernel: Linux 5.15.146.1-microsoft-standard-WSL2
    Architecture: x86-64