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

Oct 1, 2018 8:56 PM in response to lobsterghost1

I am extremely happy with the response I have received and I know Apple is putting forth some great effort here. The concern some people are having relates to the 14 day return window that will be closing soon if they purchased on launch day. If it is a hardware or software issue that would be nice to know so that those decisions whether to return can be made.


I am curious, though, how you know you are not experiencing the WiFi issues for sure? In my case I know because I can directly compare my XS to my X and previous iPhones in the house which get max throughput from my ISP and maintain their WiFi connections. I can also see on my router that my XS is almost always connected to 2.4 GHz, whereas my other devices stay connected to 5 GHz band. And as an example, even when I am connected to 5 GHz I sometimes have weird connection issues such as no throughput User uploaded file

Oct 1, 2018 9:12 PM in response to Mattdouglas96

Mattdouglas96 wrote:


I have you also noticed a problem with the Bluetooth connection?

Many times in my car my Bluetooth breaks up when playing music or even when using my AirPods...

Not here my new Xs works as well as all my iPhones have with the bluetooth in my Mazda 6. I have had issues with bluetooth on several iPhones especially after updates to the iOS. I had to resync because the Xs was a new iPhone but not any problems since

Oct 2, 2018 8:55 AM in response to dino_russ

dino_russ wrote:


rbrylawski wrote:


MidwayFlux wrote:


"In a good and relatively close proximity to a 5ghz signal, the phone should do well."


Key Word here being "Should"... And it's not. using my iPhone XS Max right next to my iPhone X, and speeds are much slower, some web pages aren't loading at all..


Out of curiosity, did you get yours on Launch Day or after? Preorder? I'm still wondering if the initial preorder phones had issues in assembly or manufacturing that were worked out.. Might explain why some people are having issues and most are not. Also might explain why restores and resets don't work but some saying they've received replacements DO work..

My phone is a launch day delivered phone.

FYI to add to this: My phone is also launch day Xs. I can see my 5ghz nearly 20-25 feet away inside house and not line of site (walls are not that thick FYI). it has weaked from "full bars" whatever that means in signal strength down to 2 of three fluctuating to 1 some times but mostly in house I can get same speed (max of my ISP) even when signal bars less.

And that aptly illustrates the issues with being a couch engineer, relying on an app provided speed test to tell you there's an issue with your phone. If it works, who cares what an app generated, and often unreliable speed test says.


Now, if it doesn't work and some are saying so, that's definitely a problem. And one Apple will surely figure out why and via the magic of a software update fix.

Oct 2, 2018 9:01 AM in response to lobsterghost1

rbrylawski wrote:


dino_russ wrote:


rbrylawski wrote:


MidwayFlux wrote:


"In a good and relatively close proximity to a 5ghz signal, the phone should do well."


Key Word here being "Should"... And it's not. using my iPhone XS Max right next to my iPhone X, and speeds are much slower, some web pages aren't loading at all..


Out of curiosity, did you get yours on Launch Day or after? Preorder? I'm still wondering if the initial preorder phones had issues in assembly or manufacturing that were worked out.. Might explain why some people are having issues and most are not. Also might explain why restores and resets don't work but some saying they've received replacements DO work..

My phone is a launch day delivered phone.

FYI to add to this: My phone is also launch day Xs. I can see my 5ghz nearly 20-25 feet away inside house and not line of site (walls are not that thick FYI). it has weaked from "full bars" whatever that means in signal strength down to 2 of three fluctuating to 1 some times but mostly in house I can get same speed (max of my ISP) even when signal bars less.

And that aptly illustrates the issues with being a couch engineer, relying on an app provided speed test to tell you there's an issue with your phone. If it works, who cares what an app generated, and often unreliable speed test says.


Now, if it doesn't work and some are saying so, that's definitely a problem. And one Apple will surely figure out why and via the magic of a software update fix.


Ha sure does, all us couch engineers so funny. Anyway I had not really paid much attention to my iPhones typically dropping from 5ghz to the stronger 2.4 as it still did what I wanted at home where my cell signals with AT&T have never been good (calls work fine though as does text with Cell -- or Wifi of course). Was fun to learn a bit more about my setup still using my AirPort Extreme (with another in box as backup) that does me fine. But I am a happy customer personally and now its been nearly 2 weeks. but your right some seem to be having worse issues than those of us who seem to be getting same things we always did.

Oct 2, 2018 10:58 AM in response to henryhuang24

Looks like posting about today's iOS 12.1 beta update is a no no. Getting Unauthorized when trying to view those messages from the Emails I've received about this post. A shame. I'd love to know. I'm not going to beta update route right now in case I need to restore from a Backup to a new or replacement phone. That phone would come with the release software, and would need to be updated and THEN restore from a backup... It'd be great if the Apple Tech that reached out to me had any updates on this.

Oct 4, 2018 7:31 PM in response to dgazr

Well I tried to wait it out but my return date (as many others) is tomorrow.


I returned the IPhone and not wanting to downgrade to an older model, I just went with a Note 9.


My previous Notes (I've had most of them) gave me no glaring issues.


My signal is much better but that is expected. This was my first IPhone and I would like to try again next year but I wont be preordering. I'll give it a month or two to see how everyone else is enjoying it.


The Note 9 is currently fast with all my speeds, and my signal is fairly better. Where the IPhone Xs Max routinely gave me around -112 dbm, the Note is giving me around -95.


Oh well, I wish everyone luck and that Apple pulls through on this one sooner or later.

Oct 6, 2018 8:20 AM in response to henryhuang24

I have since returned mine and my husbands XS Max he stayed with his 7 Plus and I’m with my 8Plus which I never had a problem. A very strange thing happened don’t know if it’s a coincidence or not when I returned my XS Max they took out the SIM card and gave it to me when I went to Verizon and happened to mentioned I had the SIM card they just removed, he said great I’ll pop that one in. So now since they replaced my SIM card with the one that was in the XS Max I have been dropping calls and having call fail on my 8 Plus so I’m wondering did it have something to do with the SIM card or purely by coincidence. Curious what anyone thinks but I am going to go to Verizon today and ask them to replace the SIM card in my 8 Plus.

Oct 6, 2018 12:52 PM in response to henryhuang24

I can say that I'm experience much of the same issues with my iPhone XS. From a WiFi performance standpoint, this has been the worst phone I have ever had. Dropped signal in my home practically every day, then sometimes will refuse to connect to my home network when every other device works just fine. I hope this is just software-related and Apple can fix it with an update, but this is just terrible. It's honestly making me want to get rid of the phone.

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iPhone XS Max Weak 5GHz WIFI Reception

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