How can I fix Wi-Fi and CarPlay issues on iPhone 17 Pro Max?

All you need to do is DELETE previous iPhone and PAIR new one with taping CODE displayed on your car device to your Bluetooth at Phone. Easy!

Lawrence you are a genius! Turning VPN off wasn't enough, had to delete. iPhone 17 Pro to Audi 2024 MMI

Thank you

My Jeep has 2 USB ports. I switched to the second port to connect and that solved the problem for me.

I’ve been on the same boat. 26.1 has made things better but still random disconnects.

I'm still having connection problems, my iPhone 17 Pro Max 512 and my iPhone 17 Pro Max 256. I always have to go into settings/CarPlay to fix it. Apple, please help!!!

having same wifi issues on my 17 pro max, wifi dropping randomly and repeatedly witn no service at all while my 16 pro max working flawlessly. This is on a high end mesh router with gigabyte fiber service. Something is off

Wifi at home works fine and CarPlay obviously not.

After change iPhone 16 pro max to 17 pro max my wireless CarPlay with Mercedes S-class W222 2020 year is broken. 

It connecting but after 1-3 min disconnects and wan’t connect again unless I restart a car or switch iPhone to plane mode including Bluetooth. 

I have update the firmware in wireless kit to latest and made reset of network settings in iPhone. 

No luck.

As far as I know you changed supplier of WiFi and Bluetooth to in-house production so believe it something not working here. 

any suggestions / fix ?

Same issue here, thinking about returning it (iPhone Air) tried to troubleshoot for hours with apple over the chat then phone. Could not solve. Both WiFi and Bluetooth turn off for a few seconds after unlocking. Impossible for CarPlay or AirPlay usage.

17 pro not working on my 2025 Subaru Forrester wilderness with wired CarPlay. Worked fine with my previous iPhone 13 Pro. Friend plugged her older iPhone in and it worked just fine. Definitely an issue with 17 pro.

Same here, iPhone air, both AirPlay and CarPlay unusable as both Bluetooth and WiFi are randomly turned off and back on. Easily replicable by just waking the screen / locking / waking the screen. Apple Watch not a factor for me.

I’m having the same exact issue. My iPhone 15 pro worked flawlessly with CarPlay as soon as I switch to iPhone 17 pro, it disconnects after 3-4 minutes. I did almost all the troubleshooting I could think of. I think it’s a device defect on some iPhone 17 pro’s. This is the first batch after all.

I’m using high quality cables too and my cars firmware is up to date. Works with all my phones other than the 17 pro max.

VPN fix doesn’t work for everyone. In fact, a bug has been found in the N1 chip which is causing all of this. See the Reddit post that has discussed all of this. I’d link to it but I don’t know if it’s allowed.

I’m starting to think it’s an issue with car play crashing. When I’m driving with just music playing it doesn’t seem to disconnect at all had this several times yesterday then today I drove for about 40 minutes just on the main screen music playing and the map just showing where I am not navigating anywhere then I tested by setting the nav to where I was going and within a minute it disconnected I then reconnected left the nav off and was fine for the next 20 minutes till I parked up

I’m having CarPlay freeze issues with a USB-C wired connection, so it’s not just a wireless carplay issue. iphone 17 Pro Max, IOS 26, 2019 Cadillac CT6, wired USB-C connection. CarPlay contually freezes and disconnects every 1-10 minutes. I did not have these issues with my iPhone 15 Pro Max running IOS 26.

I have both the wifi and carplay issues.

My 17 pro is setup with the same settings as my 13 pro.

• yes I use a VPN (tailscale) to connect to home from where ever I am
• Wifi speed is (most of the time) half of my 13 pro reaches, when running a speed test simultaneously
• wireless carplay stops after 2~5 minutes
• wired carplay does seem to work
• I have a 5th gen Apple Watch