Open Android’s Settings app and tap “Wi-Fi” to view a list of Wi-Fi networks.
Long-press the name of the Wi-Fi network you want to change the proxy settings for. Tap “Modify Network” when a menu appears.
If you haven’t already connected to the Wi-Fi network, you’ll need to connect to the Wi-Fi network and enter its passphrase before you can access the “Modify Network” options.
Expand the “Advanced options” section on this screen. Tap the “Proxy” option and select either “None” for no proxy, “Manual” to manually enter proxy server settings, for your network.
If you select “Manual”, you can manually enter the proxy server’s details. Enter the address of the proxy in the “Proxy hostname” box. Despite the name of the box, you can enter both hostnames like “proxy.example.com” and IP addresses like “192.168.1.100” here. Provide whichever type of address you have. Enter the port the proxy requires in the “Proxy port” box.
If you want to have Android bypass the proxy for any addresses, enter them in the “Bypass proxy for” box, separated by commas. For example, if you wanted Android to access howtogeek.com and example.com directly without using the proxy, you’d enter the following text in the box:
Tap “Save” to save your settings when you’re done.
Each Wi-FI network has its own proxy server settings. Even after you enable a proxy server for one Wi-Fi network, other Wi-Fi networks will continue to not use a proxy server by default. Repeat this process if you need to change the proxy server settings for another Wi-Fi network.