Iphone 12 Pro Max Keeps Losing Wifi Signal

I agree with 33139. The silence from Apple is deafening! This is a known issue with the iPhone 12 line up. It is March 1st and still there is no fix! I've tried everything discussed on this forum and could not resolve the drop. I called into support today and got nowhere after an hour. They said the next level will look into it.

I wish I had read all the reviews before purchasing the 12mini. I am extremely frustrated and disappointed with Apple!

I just purchase my Iphone 12 Pro Max 2 weeks ago. I not only have drop outs with Wifi on and off, cellular data too. I have tried checking every other devices is doing just fine. I tried going into Airplane mode and back, useless. I tried switching from WIfi to data and back, useless. It is like I totally got disconnected from internet both cellular and Wifi. Oh and worst part, my phone suddenly gets hotter. The only solution I have now which works is to restart the phone and everything is back to normal. I have to do this almost on a daily basis at random times.

I have posted twice previously in this thread, but I have new information that may relevant to other contributors and perhaps even to Apple. I split my time between two homes. In one home I have a router/modem combo provided by my ISP. At this location my iPhone 12 Mini disconnects from WiFi several times a day while all other devices (iPads, MacBook, TV, Sonos speakers, and my grandson’s iPhone 11 Pro) remain constantly connected. As we all have learned, while our iPhone 12s show they are connected to WiFi, they are not, and the temporary fix is to turn off the phone’s WiFi and simply turn it on again. This is quite annoying.

In my other home I have a Netgear Nighthawk router. My iPhone 12 Mini has never once disconnected from WiFi at this location. This, of course, does not absolve the iPhone from culpability as it should not randomly disconnect from any WiFi while other devices remain connected. I don’t know what this means, but perhaps readers with more tech savvy than me can figure out why this would happen.

I've had this problem with the 12 Pro Max since iOS 14.5 came out, not before. I have Aruba 215 APs throughout the house. No problem with any of the other devices. Connections are 802.11ac on 5GHz. My MBPro has no problems. My iMacs have no problems. My old iPhone 7+ on the same version has no problems. Pixel 3a has no problems.

Just now speed comparisons, same network, same iOS version, the variable is the hardware:

The iPhone 12 Pro Max: 42.9d, 11.3u

The iPhone 7+: 178d, 23u

Again, same iOS version level, same Aruba APs, the variable is the 12 Pro Max hardware. Pretty awful, Apple.

That is very bizarre. Just spoken to apple support, they’re still admitting no general issue with the iPhone 12 Pro Max but they have now asked me to test with the Bluetooth switched off to see if there is a link there……..

I've done a Reset Network Settings and it hasn't happened in a few days. Still too soon to know but if you want to try: Settings > General > Reset > Reset Network Settings

Note: this will forget all your known WiFi networks & settings, you'll have to re-join.

Normally, when you purchase something from a retailer, you take it back to that retailer. Hence, that would seem to be the best course of action. As I suggested, I would guess you’d need to prove that there actually is a problem - possibly by using a printout of this thread. I would also GUESS that a like-for-like replacement would work fine because I suspect newer phones are different from the early ones. Of course, we all believe that this problem is a manufacturing issue, but I would still have thought it is up to John Lewis to replace yours, and then take it up with Apple themselves. However, I’m not an expert. If you do take yours back to John Lewis, I hope you post your experience on here. Good luck.

Same problem with my Apple 12 Pro Max. The only workaround for my phone is to shut it down and restart it. No other solution works consistently.

If I turn the phone off and back on, it reconnects. I believe it’s the new security settings for the MAC address.

iPhone 12 max pro losing wifi go to settings and change to 5G this looks like it’s cured the problem

Deleted google maps. Not had issue since.

I went to Verizon to get the replacement phones

Same here. My mom, my two sisters and I have the iPhone 12 pro max and keep losing wifi connection for two weeks now! But my husband and brother who has iPhone 11 and iPhone XR don’t have this issue. It’s annoying! I have to disconnect and connect it again or I have to use my cellular data!

and yet another “same issue”...as of Jan 23rd, 2021.

Just bought an iPhone 12 Pro Max this week and have to switch WiFi off then on periodically throughout the day. Not using VPN. I have over 20 other devices on my network, to include iPhone X, IPhone 11 Pro, 4 iPads, 2 Mac books, 2 iPods, 2 Apple TV’s...and no connection issues whatsoever with any of those devices! My ISP connection is over 400mbs and I have a full scale Ubiquity network. CLEARLY THIS IS AN IPHONE 12 ISSUE. APPLE....FIX THIS!

This looks broken.

Today is just the second day in succession this happened. My iPhone 12 Pro is less than 3 weeks old. It did work flawlessly till yesterday though.

It stopped yesterday night. At the time, I thought my wifi router was the problem till my wife reminded me that the same router had been serving Netflix over Wifi with the same SSID without a hiccup for the past 2 hours and couting.

It stopped again 30 minutes ago and I'm sitting 2 feet from my router and everything else including connectivity to this webpage is working without a hiccup.

Not I'm NOT buying that the "router" is the issue. I like to think it's in the iPhone software since a phone reboot makes it go away. Hoping it's near the top of Apple's list of things to fix.