Some iPhone XS & XS Max owners complaining of poor wireless reception
The first few days after release are proving rocky for some iPhone XS and XS Max owners, who are coping with bad Wi-Fi and cellular connections on their new mobile devices.

At the moment AppleInsider can confirm there are scattered complaints about the issue. This includes posts on Apple support forums, Reddit, and elsewhere.
Affected people are having a harder time connecting to the internet, and seeing slower speeds than older iPhones when they are successful. The glitch doesn't appear to be limited to a single carrier or region, which may support the hypothesis of an iOS 12 issue than something network-specific.
There are other possibilities however, such as a hardware defect in some but not all production models. Initial surveys of service locations don't see a large number of complaints as of yet, and none of AppleInsider's units manifest the problem.
Apple infamously dealt with a so-called "Antennagate" following the 2010 launch of the iPhone 4, in which people discovered that holding the phone a certain way caused interference. The company pointed out that rival's products had similar problems.
Since then, Apple has redesigned its antenna layouts several times, both to get around grip concerns and adapt to new back materials and designs. The XS and XS Max have a new antenna line along the bottom, which should theoretically improve wireless connectivity.

At the moment AppleInsider can confirm there are scattered complaints about the issue. This includes posts on Apple support forums, Reddit, and elsewhere.
Affected people are having a harder time connecting to the internet, and seeing slower speeds than older iPhones when they are successful. The glitch doesn't appear to be limited to a single carrier or region, which may support the hypothesis of an iOS 12 issue than something network-specific.
There are other possibilities however, such as a hardware defect in some but not all production models. Initial surveys of service locations don't see a large number of complaints as of yet, and none of AppleInsider's units manifest the problem.
Apple infamously dealt with a so-called "Antennagate" following the 2010 launch of the iPhone 4, in which people discovered that holding the phone a certain way caused interference. The company pointed out that rival's products had similar problems.
Since then, Apple has redesigned its antenna layouts several times, both to get around grip concerns and adapt to new back materials and designs. The XS and XS Max have a new antenna line along the bottom, which should theoretically improve wireless connectivity.
Comments
I know when I updated my iPhone to IOS 12 immediate afterward I got a notice for a carrier update, after the update it took some time to re-establish connection to AT&T network.
I get worse reception inside my house with my Verizon XS Max than last years iPhone X.
Times like these remind us of a few things: 1) the Apple Watch S0 is one amazingly slow device, 2) if there is the slightest window where moving important information from one device to another can fail - assume it will, 3) make sure you have your Apple Id recovery keys available, 4) defer whatever you can until after the migration process (pairing with Apple Watch, setting up Apple Pay, etc.), 4) be prepared to waste a few hours or a day or two dealing with the inane claptrap that bringing a new iPhone into your life involves. It's obvious that Apple has tried to make this as easy and foolproof as possible, but with so many moving parts it's hard not to lose a few fingers or a little piece of your sanity in the process. In a day or two or a week - all will be forgiven.
I’ve always defended Apple, from and to various gates, to the battery software, etc.
Maybe if iOS12 or maybe it’s something with in the iPhone XS max. But I can tell you that on daily basis, and hourly basis I have to turn off and on my iPhones Wi-Fi to get it work again.
Hopefully software are will fix it.
Luckily I can screen record this activity.