After upgrade to iOS16 my phone doesn't see 5GHz wi-fi

Hey vorant94,

We'll be happy to help with connecting to a 5GHz Wi-Fi network. Just to confirm, is the issue that the 5GHz network is not appearing or does it display, but you're unable to connect to it? This question will help us further, but this resource can still help: If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network - Apple Support. The steps have been posted below:

"1) Make sure that your router is on and you're within range

If you're too far from your Wi-Fi router, you can't get a signal, so make sure that you're within range. 

2) Make sure that Wi-Fi is on and you can see your network

Go to Settings > Wi-Fi and make sure that Wi-Fi is on. Tap the name of your Wi-Fi network to join. A blue checkmark beside a network name means that you're connected.

If you see Auto Join Disabled under your Wi-Fi network name, tap it turn on Auto-Join.

3) If asked, enter your Wi-Fi password

If asked, enter the password for your Wi-Fi network. Get help if you don't know your password.

Even if you enter the correct password, you might see an "unable to join the network" message or an "incorrect password" message. Restart all of your devices, then try to enter your password again.

4) Check for issues with your Wi-Fi network

If iOS or iPadOS detects an issue with your Wi-Fi connection, you might see a Wi-Fi recommendation under the name of the Wi-Fi network that you're connected to. For example, you might see the alert "No Internet Connection." To get more information, tap the Wi-Fi network.

5)) Check your cables and connections

If you still can't connect to your network or get online, make sure that your router is connected to the modem and turned on.

6) Restart

Try restarting your iOS or iPadOS device. Here's how to restart your iPhone, iPad, or iPod touch.

Then restart your router, and cable or DSL modem. To restart your router or modem, unplug it, then plug it back in. 

After you restart each device, see if you fixed the issue.

7) Still can't connect?

Reset your Network Settings. If you're using iOS or iPadOS 15 or later, tap Settings > General > Transfer or Reset [Device] > Reset > Reset Network Settings. If you're using iOS or iPadOS 14 or earlier, tap Settings > General > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before."

Also take a look at this resource to rule out any possibilities of interference: Resolve Wi-Fi and Bluetooth issues caused by wireless interference - Apple Support.

If the issue is that you can see the network, but the password is not accepted, here might be some reasons why: If you need help with your Wi‑Fi password - Apple Support.

Keep us updated!

I have the same problem. I cannot see that the Wi-Fi is connected since the Apple Technician forced this update on my phone. My banking apps say there is no connectivity however, my apps are all updating using the connected Wi-Fi. This is the WORST update!!!

Hey there vorant94, 

At this point, it would be best for you to Contact Apple Support for help.  

Have a good one!