iPhone 16 Pro: WiFi Drops Sporadically

Guys I found a solution. Go to the modem interface for a solution and disable the “STBC Tx” setting from the advanced settings. Set the bandwidth to a minimum of 40MHz and adjust the control channel to one of the less congested channels. Some modem brands are reportedly incompatible with Apple products. I experienced this issue only at home and not with other WiFi networks so indicates that the problem is caused by the modem.

Older post but I just upgraded from 13 to 16 not knowing this was an issue...finally figured out the phone was connecting to the 6E network, I turned this option off on the network and now have no more issues.

It look like a wifi repeater may have been the problem. As I turn it off, no more problems (?)

Here’s what the Genius Bar just told me. The problem is not the hardware. The problem is that I copied my iPhone 12 to my new iPhone 16 (I’m not sure about the technical term, but I set my iPhone 12 next to my 16 and let it bring everything to the new phone). Because of this, some software and settings from the 12 are messing with the 16 and there’s nothing they can do about it except a complete factory reset of the phone. The problem with that is, I lose absolutely everything because I cannot restore my back up . Oh and a big point of this is that I back up to iTunes I do not use iCloud. If I used iCloud, everything would be fantastic so they tell me. Does this track with anyone else’s experience?

The next step is for me to have Verizon reprovision my account. This has something to do with the SIM card. After that, a reset of not just the network, but all the settings is suggested. If none of that works, I would have to factory reset and start over.

Go into settings under the Wi-Fi connection and turn off private Wi-Fi address. I had good luck with that.

I've got iPhone 16 Pro max and i have same issue. When i restart my modem or close-open quickly wifi setting on the phone it seems normal with speed test. But after few seconds speed dramatically downing to 2-5 mbps. All other devices mac or other pc showing same speed but the phone different. My modem 2.4 ghz.

I've got iPhone 16 and returned it after I tried everything. Got a new one but the problem is stil there. None of my other Apple devices have a problem.

is Apple going to come out with software to fix the problem with the Internet going in and out? I do not have good LTE in this solid brick house. I am sorry I ever bought this iPhone 16 Pro Max. My 12 Pro Max never had this problem. My wife and I are getting disgusted. Let’s go Apple and fix this.

I have an iPhone 16 updates to iOS 18.2 and still have this issue. Any solutions?? Should I make a genius bar appointment?

Thank you -I turned off all three. Didn’t know that was even there. Did not change my issue.

I tried it but it didn’t change. I think its happen because of modem. When i try test in the friends house, its working normal.

Try this......

I was not able to find this setting - I have a Deco 6E mesh router - any idea what else it might be called? thank you!

Thanks - trying this!