iPhone 15 Pro / Pro Max Wifi Issues with Unifi UDR
Original Post: General tip for Unifi UDR users: It appears the Unifi UDR Wi-Fi 6 chipset has issues allowing the new iPhone 15 Pro / Pro Max to connect if you are trying to use the 160MHz channel on the 5GHz network. The iPhone will connect, but then advise no internet connectivity and won't download apps or connect to anything. This also causes the phone to fail initial activation during setup.
To fix this do the following:
- Access your Unifi UDR web console.
- Open the Network app in the console.
- Goto Settings
- Open your Wi-Fi settings.
- In the Global AP Settings, reduce the 5 GHz Radio down to 80MHz channel width.
- Save settings.
You should now be able to connect and access the internet on your iPhone 15 Pro/Pro Max.
Hopefully Unifi come out with a firmware fix for this issue soon. In the meantime, I hope this helps anyone who was in my situation today.
Edit: Added some additional details about the issues that occur on the iPhone.
Update: We've got confirmation from other Redditors that this issue affects more than just Unifi devices. The issue appears to occur on at least the following devices:
- Unifi (UDR, U6 WAP)
- ASUS (RT-AX82U, RT-AX86U and RT-AX88U)
- CenturyLink Calix C844G
- TP-Link AX5400 Archer
In most cases, adjusting the Wi-Fi channel range to either 20/40/80MHz or setting the channel to 160MHz only appears to resolve the problem. Obviously both these workarounds have effects on other devices trying to use 6E (160MHz) or lower 5GHz Wi-Fi frequencies by limiting their connection speeds.
Unfortunately, these workarounds do not appear to work for the CenturyLink Calix C844G. UPDATE 2: Thanks to u/awtx for his update. CenturyLink has apparently retired this model of device. He has reached out to CenturyLink directly and they have organised to come out to his apartment to replace the device with a newer model router. Keep an eye on his post here for further updates if you use this device: iPhone 15 Pro / Pro Max Wifi Issues with Unifi UDR : iphone (reddit.com)
A big thanks to everyone who has been helping identify devices with issues and they fix they have done to get their iPhones working. Hopefully, Apple and/or the Wi-Fi hardware vendors can release a fix soon so we can properly use our Wi-Fi 6/6E frequencies again on all our Wi-Fi devices.