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Alan Varga
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Android Authentication Problem

I have an off-brand Android phone (Alcatel) using Tracfone as my service provider.  For the last couple of weeks I have been having authentication problems after a Norton alert that "my connection was compromised".  I checked all of the router settings, rebooted the phone and now can no longer connect the phone to my home wi-fi network.  I just get the message "Authentication Problem" after an attempt to connect.  I have restarted the phone numerous times, I have rebooted the router a couple of times, and I have Forgotten the connection and re-added it as a new connection numerous times, but it will not connect properly.

My two daughters have exactly the same phone, and they can connect without a problem.

I can connect my phone to the wireless network at work without a problem.

Short of resetting the phone to its factory defaults, is there anything I can try to resolve this?
NetworkingAndroidSmartphonesSmartphone ProgrammingMiscellaneous

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Davis McCarn

8/22/2022 - Mon
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Jackie Man

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Alan Varga

ASKER
No luck.  I uninstalled the Norton app, rebooted, selected and "forgot" the network, rebooted and tried connecting by entering the password.  There is still an authentication problem.

I will check in again when I am home this evening for further ideas.
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Davis McCarn

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Alan Varga

ASKER
Proxy settings = None, IPv4 settings = DHCP.  I have no trouble connecting to the wireless network at work, but cannot connect at home.  (Also see my earlier comment about my daughters' phones.)
Jackie Man

Have you checked whether Norton is still listed as a Device Administrator app?
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Alan Varga

ASKER
Yes, I checked.  Norton appears to be completely gone.  How can I specifically check Device Administrator apps?
Jackie Man

Diable Wi-Fii -> Turn on Airplane mode -> Turn off Airplane mode -> Enable Wifi and connect to the wireless router again.

Source: https://community.norton.com/en/forums/network-compromised-0?page=2#comments
Alan Varga

ASKER
I tried toggling as suggested, but the problem is still unresolved.  The thread for the Norton Community doesn't give a clear solution, but includes many "me too" postings.  There are a couple of mentions for updating the Android OS, if available, but none are available for my older phone.
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Davis McCarn

I think, then, that you are at the point of doing the factory reset.
Jackie Man

What is the Android OS version?
Alan Varga

ASKER
Jackie, my Android OS version is 4.4.4, with security patch level 2016-01-01.  I'm just about ready to do a factory reset, unless you can talk me off the ledge and back in the window.
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Alan Varga

ASKER
I just did a factory reset and I still have an authentication problem with my Wi-Fi network at home.  I am in the process of resyncing my two email accounts, contact lists and a small number of apps.

I still need assistance resolving this issue, which now appears to be on my network.  I've already changed my network password, and I think I changed to a different wireless channel.  Do I also need to change my SSID and deal with all of the other devices on the network (notebook computers, tablets, phones and portable game consoles)?  Or can I do something to wrestle control of my phone back?
Davis McCarn

What is the authentication type for the WiFi?  Lots of older devices hate WPA2 and lots of newer ones hate WEP.
Alan Varga

ASKER
While there are several choices, "WPA-PSK (TKIP) and WPA2-PSK (AES)" combined is the one that is operational now.  My daughters have the same phone model and have no problems.  Mine worked fine for a couple of weeks when I first got it, but after Norton Mobile Security balked my phone no longer worked.
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Davis McCarn

You have a very weird problem!  The factory reset should have dumped everything from the phone, starting it completely fresh.
Does your router have a "cloud connection"? (Meaning something Norton could have altered)
Have you checked it to see if MAC address filtering is disabled? (Most routers will let you block connections from specific MAC addresses which is analogous to the serial number of the network port)
Does the router have a "GUEST" network option and have you tried turning it on?
Have you unplugged the power to the router for at least 5 minutes and then plugged it back in?  (Some router settings will only reset that way excepting cable company devices where there is also a telephone port and then you have to use the reset button on the back of the router/modem)
Alan Varga

ASKER
I agree, this is a weird problem!  I do have MAC address filtering enabled, but I'll double-check that my phone is still there (and that the address is the same as what I set up when I got the phone).

My "router" is a 2-Wire 3801HGV gateway from AT&T U-Verse.  I have restarted it a couple of times, but I haven't tried turning it off for 5 minutes; that's worth a shot.  (That will also disable the main phone, but hey, it's Saturday.)  I'll post back with the results.

Thanks for your help Davis.
Davis McCarn

On most of the cable modem routers with telephone you have to press the reset button for one second and it is in a hole near the power adapter connector. (10 seconds does a factory reset so don't hold it down for a long time and a toothpick works great)
I would turn off mac address  filtering temporarily to test the phone.
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Alan Varga

ASKER
As a result of rebooting the router and clearing the device list I erased the MAC filtering table.  With that done, I tested my phone and could not connect.  I re-enabled filtering added back all of the devices I need into the filtering table.  Using the DOS arp command I verified that my phone is not listed, and only those devices that are currently active are listed.

What do you suggest next?  Do you think this is a problem on the phone side or the router side of the connection?
Davis McCarn

Is there any chance that your phone is running a different version of the Android O/S than the other two?
Its in settings.
Alan Varga

ASKER
The Android version is the same (4.4.4), as are the Baseband Version and Kernel Version.

However, my Build Number is 03001, and my daughter's Build Number is 02001.  Additionally, I have an "Android security patch level" of 2016-01-01, and hers does not have a "security patch".

Looking at this from strictly a data viewpoint, is there a table in my router that is remembering and flagging my phone's MAC address as a problem?  What data is involved in authentication, other than the MAC address and a network password?
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Jackie Man

It is a problem of the router.

What is the wireless security level of your router? WPA2-Personal?
Alan Varga

ASKER
Jackie, "WPA-PSK (TKIP) and WPA2-PSK (AES)" combined is the setting that is operational now.
Jackie Man

Can you change it to WPA2-PSK (AES)?
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Davis McCarn

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Alan Varga

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Excellent, some actionable intelligence.  Thanks Davis!  I'll give the Internet filter a try tonight when I get home, and we'll start shopping for updated phones as well.  I'll report back with the results.
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Alan Varga

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Alan Varga

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Just curious if this article relates at all to my phone problem; I think the timing was about the same...

https://knowledge.symantec.com/support/mpki-for-ssl-support/index?page=content&id=ALERT2566&actp=LIST&viewlocale=en_US
Jackie Man

The article from Symantec is not related to your problem.

The problem is from the setting of the router.

"WPA-PSK (TKIP) and WPA2-PSK (AES)" combined is the setting that is operational now."

Is the password of the SSID numeric or alpha numeric?
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Alan Varga

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Jackie, my SSID password is 10-digit numeric, FWIW.
Jackie Man

You need to change the wireless security to wpa2 and change the password to an alphanumeric one.
Alan Varga

ASKER
I tried three different apps to root the phone, only to find out that when I finally got to the hosts file, I couldn't save changes because of restrictions put on by the service provider that sold it to me (Tracfone).  I couldn't award any points because my issue is permanent.
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Alan Varga

ASKER
To Jackie and Davis, I must apologize for wasting your time.  I was extremely stupid and was trying to use my router password instead of the wireless network key to connect my phone.

After ordering a slightly newer phone and having an authentication failure there too, I called AT&T support, which got me straightened out in 5 minutes.  This was a case of PIBCAC.  I am really embarrassed to have made such a rookie error and not checked that out earlier.

Thanks again for your time.
Davis McCarn

Hey; it's not the first time and I'm glad you got it sorted out!