Below are the two quick methods you can try to connect your HP 3700 printer to Wi-Fi and complete the setup process.
Firstly, head to your printer to press the Wi-Fi button, and the Wi-Fi Direct light will start flashing.
Then, you should grab the mobile or go to your computer and open the Wi-Fi Settings.
Try to look for the wireless network with your printer name and select it.
When it prompts you to type the password, enter the universal password 12345678. Once connected, tap Done.
After that, open the document you wish to print, tap the menu, and select Print.
Now, select your HP printer model printer from the list, and you can begin printing.
As the first step, you should download and install the HP Smart App on your device.
Head to your printer, then press and hold the Cancel and Wi-Fi buttons together until the power light starts flashing.
After that, you will notice that the power button will flash a few more times and remain lit.
Then, launch the HP Smart App you just downloaded and tap the + button, and it will start searching for the printer.
Select the Add Printer button at the bottom and select your printer.
Once you see a prompt, enter the wireless password and tap Continue.
Once you get the printer connected to the Wi-Fi screen, select Continue, and it will start gathering the printer's details.
Here, you have the printer setup is complete, and you can start printing your documents.
If these methods are unable to complete the connection between your printer and Wi-Fi, it would be good to seek more help.