iPhone XS Max Weak 5GHz WIFI Reception

I used to have full bars at my bed with iPhone X, now the Max only has 2. And it has trouble reconnect to the WIFI after airplane mode is turned on with WIFI turned on.

iPhone Xs Max, iOS 12, 64GB

Posted on Sep 22, 2018 9:53 AM

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Question marked as Top-ranking reply

Posted on Sep 28, 2018 6:19 PM

For more empirical Wifi Data you can download the Airport Utility app (no need to actually have an Apple Airport), and follow the following instructions from https://support.apple.com/en-ca/HT203068 to run the scanner utility from your XS and other iOS devices at the same location to get comparative data.
The Wi-Fi scanner in AirPort Utility
Apple’s AirPort Utility includes a Wi-Fi scanner that logs the client’s view of the network. Administrators can use it to validate the client’s view of the network at a specific location.
For accurate results, use the Wi-Fi scanner on a dedicated device that’s the same model as the iOS client.
On your iOS device, go to Settings > AirPort Utility to turn on the Wi-Fi scanner.
User uploaded file
Next, open Airport Utility and tap Wi-Fi Scan.
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By default, Wi-Fi Scanner runs continuously. Use the slider to set a scan duration of up to 60 seconds.
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To start the scan, tap Scan. AirPort Utility lists all the SSIDs that it finds. This includes hidden networks, which appear as "Network name unavailable."
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The AirPort Utility scans all available bands at four-second intervals. Enterprise networks that have multiple access points are grouped by BSSID. The scanner shows information about:

  • SSID
  • BSSID
  • Last RSSI
  • Channel
  • Last Time Found

To view a trace log of the scan results for an SSID and BSSID, tap the SSID:
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The trace log shows the date and time of the scan, along with the channel and RSSI.
After the scan completes, you can share the results. Just tap the share icon (User uploaded file), then choose one of these options:

  • AirDrop
  • Message
  • Mail
  • Copy

AirPort Utility sends the results as a comma-separated list:
SSID, BSS, RSSI, Channel, time
"ACES", "18:64:72User uploaded file3:E9:40", "-57", "11", "12:02:03 PM"
"Cuba", "F8:1EUser uploaded fileF:F9:56:BC", "-53", "149", "12:02:03 PM"
"ACES", "18:64:72User uploaded file3:E9:50", "-63", "149", "12:02:03 PM"
"Cuba", "F8:1EUser uploaded fileF:F9:56:BB", "-69", "11", "12:02:03 PM"
"ACES", "18:64:72User uploaded file3:E9:40", "-67", "11", "12:02:07 PM"
The first line is a column header that shows the SSID, BSS, RSSI, Channel, and date fields. To analyze or chart the results, import the list into a spreadsheet or other tool.

744 replies

Sep 27, 2018 1:04 PM in response to papjo

i totally agree with you, but the person i spoke with over chat said four times there is no known issue for this. the apple forums are not official apple. people on forums often don't own the phone.


my main concern now is what happens once i reach 14 days? i agree going to the store will most likely be for naught. but if that's what Peta says to do, I will do it.

Sep 27, 2018 1:32 PM in response to _g89_

_g89_ wrote:


My pre-ordered 512GB arrives 10/10. I'm likely going to refuse the shipment. I'll re-order once Apple acknowledges and fix the wifi AND LTE issues with the Xs Max

You can do that. But you're expecting to have an issue when there's only a percentage of users having issues. This is not universal to all users. There's absolutely nothing wrong with my iPhone XS Max. No cellular issues. No Wifi issues. None.

Sep 27, 2018 2:16 PM in response to Dogcow-Moof

On YouTube, I hadn't checked my settings in the App until someone mentioned it today. So I went out to my App and in settings and it's clearly marked 1080p. And this is in my office on a router that is shared by many people and has never had fast speed to begin with. So, I wouldn't think the App is making a setting decision for you.


I know I'm going to rankle some with this statement. But I fear some in this discussion are driving themselves crazy over inaccurate speed tests as their determination their phone is defective. Not all of course, but some people are whipping themselves into a frenzy.


You and I have been around these here parts long enough to know Apple will put out an update that will make this thread a distant memory. They always have. And I have every confidence this too shall pass.

Sep 27, 2018 2:26 PM in response to lobsterghost1

We tested my wife's XS Max in our area with LTE strengh and it was quite a bit better than on my X. As far as WiFi, I just ticked a box on the Airport Extreme for 5ghz and connected to that. It clearly was switching to 2.4 but once I did that, it got much better speeds. However, leaving the room that the router's in, the signal drastically dropped. Not a problem with the 2.4 signal, although the speed is about cut in half, plus we have a WiFi extender. The bottom line is, the phone works pretty well. Could it be better? For the price, I believe so. I was thinking of sending it back, but now I believe we'll be keeping it. Two days is a bit of a rush to make a decision based on the experience we've had with the handset.

I will say the 6S+ we traded for this didn't switch WiFi frequencys like this one but it functions satisfactorily. First world problems I guess...

Sep 27, 2018 2:47 PM in response to lobsterghost1

rbrylawski wrote:


You and I have been around these here parts long enough to know Apple will put out an update that will make this thread a distant memory. They always have. And I have every confidence this too shall pass.


I agree; I'm just curious as to whether it really is low performance or whether there is an API that reports WiFi speeds that isn't playing well with apps in iOS 12 - if such an API exists, it would be what YouTube uses to decide on a resolution as well.


I can say in normal "usage" - web surfing and the like - the XS Max feels snappier than my X did, which shouldn't be the case if it's truly limited to under 15 Mbps down for whatever reason.


Hiiamju wrote:


Samemy iphone xs has only 1-2bars and sometimes it got to no service l. It’s really frustrating. I can do most of things with it because it’s too slow!


How about in areas with better signal? My X running iOS 11 was often absolutely useless in areas with two bars or less of LTE.

Sep 27, 2018 4:24 PM in response to jerryknows

3?!?! I don’t know what to do. And I don’t understand how it affects some phones and not all. For those that are affected what carrier do you use? I’m on Verizon.


If it’s software do I wait it out or go back to the 8plus? My fear is they won’t do anything and I’ll be stuck with a bad phone for a year. I mean it’s a gorgeous phone just would like to you know use it.

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iPhone XS Max Weak 5GHz WIFI Reception

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