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Kudos0

WLAN scan after every unlocking/activation of the phone since Android 9

I use a Samsung Galaxy S8+ phone with Android 9. I set my NMS app to scan the WLAN after connecting to it.

Under Android 8 this scan was done only when a new WLAN connection was established (which makes completely sense), but since Android 9 the scan takes place all over the day every time after I did not use the phone for a while and use it again.

First I thought that since Android 9 the WLAN is actually disabled every time the phone is locked and/or after a while of not using it. But Samsung told me that this is not true and I see that the WLAN name in the box on the top of my phone is always set, which means (at least it seems so) that the WLAN is not disconnected.

I cannot exactly tell what has to happen that the scan takes place, but even if I stay in the range of one specific WLAN the whole day, the scan is done multiple times. It's run when I just press the on switch to wake the phone up or open my cover (which does the same).

Does anybody else has this problem? Is there a solution?

Replies

Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

Hello King555. Have you checked your "automatic wifi wakeup feature"  settings on the device?

Cheers

"From DOS to Windows10 what a journey it has been" / MS Certified Professional / Windows 10 Home / Professional x 64 version 1903 / build 18362.116 / N360 Deluxe 22.17.1.50 / Norton Core v.282 on Android 1.98
Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

This settings is "on". As far as I understand this function, "on" is correct in my case. When I return home, my phone shall connect to my WLAN, if I enter my workplace it shall connect to that WLAN (fully automatic).

And WLAN is always on on my phone, as I have WLAN almost everywhere I go.

Do you mean I have to disable this feature to stop that constant WLAN scan of NMS?

Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

One thing that I found with my phone was that if I was at the limits of my wifi coverage, and the connection would reset, the network would get scanned.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

But it's only since Android 9, with Android 8 no problem.

And the problem exists at home and at work and I'm sure both WLANs are stable and the signal is strong. And I'm not moving my phone.

So maybe it's really the case that the WLAN is just switched off since Android 9 and so NMS does its scans...

Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

Samsung devices are notorious for having proprietary changes to the Android OS that can often interfere with apps. There was another issue with a Norton app when Android 9 was first introduced. And there were different Android 9 updates released in the beginning for Samsung. Apparently if you got your update from your cell carrier as soon as it was available, there were issues with that release. A little later, the update was released to unlocked phones, and that version fixed issues with the initial release. 

So is your phone unlocked  or locked to a specific carrier? Check to see if there is another security update available for your phone.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

My phone is unlocked and not locked to a specific carrier.

And I have the latest system updates installed, as well as all app updates.

Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

Where are you seeing that the networks are being scanned so often? I find that if I tap on wifi security in the NMS app, the network will be scanned. If I move away from that page and go back after about a minute, it will scan again.  This is on Samsung Tab A on Android 8.1.1. 

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

When I activate my phone or unlock it, I see a notification from NMS with a cross hair icon and the text saying that the WLAN is scanned.

I never saw this notification with Android 8, except when I really entered the range of another WLAN.

I have a status page of my router where I can see the connected WLAN devices. I checked it for several days now and the phone is always connected. If I manually disable WLAN on my phone, the status page immediately shows that no devices are connected. This means that the WLAN is not disconnected (what Samsung already told me). So it's only the NMS app which does its scan for an unknown reason. Well, "only" is not 100% correct, I have another app, which shows the name of the current WLAN on the home screen (as a widget) and this app switches from "not connected" to the current WLAN name if I activate my phone.

So its either a bug in two different apps or a strange behaviour since Android 9, which happens only on my phone.

Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

When I activate my phone or unlock it, I see a notification from NMS with a cross hair icon and the text saying that the WLAN is scanned.

Do you clear this notification each time you activate the phone? If not, it could be similar to the NMS notification "Scan Complete" I cannot clear that notification, and each time I unlock my device, the same notification is still there. Even though no new scan has been completed. If you cannot clear the notification, this is probably what you are seeing.

See if you can clear that notification, then allow your phone to sleep/lock. Then unlock the phone again to see if the message is there again.

As I noted, I do not have Android 9, yet, so it could be related to some changes to the OS. 

 Can you post a screenshot of that notification? Instructions to post screenshots can be found here
https://community.norton.com/forums/how-post-image-forums-0

NOTE that you cannot post directly from a mobile browser. What I do is take the screenshot on the device and email it to my PC, then post from there.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

No, I do not clear it, it disappears after a short time (after the scan). Thats also why I cannot make a screenshot, it disappears too fast.

I think the notification you mean is that one you can disable in NMS. The entry in the settings is called "Continuous notification" with the description "Show security status" (I translated both texts, because I use the German version).

This is not the notification I mean. It also has another icon.

Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

I think the notification you mean is that one you can disable in NMS. The entry in the settings is called "Continuous notification" with the description "Show security status"

Yes that is the notification I was referring to. I was just wondering if there was a similar notification for the wifi scanning you are seeing.

As you cannot get a screenshot, it might be worth sending logs to Norton to diagnose what you are seeing. Open the NMS app and tap the three bars at the top left. Tap on App Settings, and scroll down to the Logging section. Turn on Enable Debug Log. Then continue using your device until your issue happens again. After the issue has happened, go back to the Debug Log setting and turn it off, then tap on Send Error Report with log files. In your submission include your forum user name and a link to this thread.

If you do submit the logs, please post back here and I'll let my contacts know to look for them.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

Today I was finally able to do what you said. I enabled the debug log, waited for three WiFi scans, disabled the logging and sent the logs together with a short description of the problem, the times when the scanning occured, the link to this thread and my username to Symantec.

Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

Just out of curiosity? After you see this notification, is it still available if you swipe down from the top of the screen to view any active notifications? If so, you should be able to get a screenshot of that for us.

After I hear back on this question, I can forward the information to my contacts.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

No, the scan runs and then the notification disappears. It's only visible when scanning happens.

The overall problem is not the notification, it's the constant scanning.

Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

@King555

Just a quick update. I too now see that Wifi scanning notification on my Samsung tablet on Android 8.1. So it appears that NMS is just being more verbose about what it is doing in the background.

As for the frequency of the scans, my contact is trying to find out more on this. Personally, I find the network getting scanned most times I bring the device out of sleep. I do not use the device on a regular basis, so I do not know if this would happen if I opened it multiple times a day.  I have noted that it scans the first time of the day I open it, but not on subsequent openings I do over the next 1 minutes or so. Maybe it is a once a day thing.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

The scanning on my phone occurs several times a day. When I check my phone every 5 minutes, the scan occurs every 5 minutes. And it did not happen before Android 9.

Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

Are you sure it was not scanning before? As I have found, the latest version of NMS is just more verbose in the notifications it is presenting. These scans may have been happening all along, and unless you had NMS open, you would not have known a scan was being done.

I'm still waiting to hear on how often scans are done. Maybe NMS does scan every time the device comes out of sleep, to ensure there have been no changes in the network since you last accessed it.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: WLAN scan after every unlocking/activation of the phone since Android 9

Yes, I am sure. I saw this notification only every time my phone connected to another WLAN. This happend every time my phone switched from a mobile connection to WLAN, for example when I arrived at home.

If I would not have seen the notification at all in Android 8, your theory could be right. But why did I see the notification before, when a new WLAN connection was actually established?