I got my A16 a while back and I had one UI six , and it was able to find the wifi just fine , but once I installed one UI 7 , it had a really hard time to find the wifi whenever it was disconnected or my phone restarted , same thing with one UI 8
Hey and welcome to the Samsung Community @ilikefries! I'm sorry to hear you're having issues with your Wi-Fi but I am here to help.
I would advise that you remove any cases or third party accessories as well and move the device to an area that doesn't have any sources of interference like microwaves, etc. Reboot the device. To do this you'd press and hold the power button > tap Power off > tap Power off again to confirm and wait 30 seconds for the device to completely shut off and then Press and hold the Power button to turn the device back on. Confirm that your Wi-Fi is turned on in Settings > tap Connections > tap Wi-Fi > tap the toggle switch. It would also help to disconnect and then reconnect to the network as well. Navigate back to Settings > tap Connections > tap Wi-Fi. Swipe to the bottom of the list and tap Add network. Enter the name of the Network > tap Security > tap the Password field and enter the password > then tap Save. Thank you for reaching out to the Samsung community @ilikefries, I have attached a link below so you're able to see the steps for yourself, let me know if this works for you.
