Att 840 default password - AT&T Cell Phones

You chould contact your cellular provider and ask them for it.

or you could try these:
Name: ATT
APN: wap.cingular
Proxy: <Leave in Blank>
Port: <Leave in Blank>
Username: [email protected]
Password: cingular1
Server: <Leave in Blank>
MMSC: http://mmsc.cingular.com
MMS proxy: wireless.cingular.com
MMS port: 80
MCC: 310
MNC: 410
Authentication type: <Leave in Blank>
APN type: default,supl,mms
APN Protocol: Leave it to the Default one

Taken from here:
https://apn-settings.com/us/att-apn-settings/

Email Support

I would create a new email address.

Straight Talk AT&T APN Name ATT 4G LTE APN tfdata Proxy proxy.mobile.att.net Port Username Password Server MMSC http://mmsc.mobile.att.net MMS Proxy proxy.mobile.att.net MMS Port MCC MNC Authentication Type PAP APN Type default,mms,supl,hipri APN Protocol IPv4

You can check with your service provider to make sure what default admin and password they have for such device or alternatly check your device manufacturer website for default credentials.

use wired Ethernet, so it works. easy.
wifi is far more complex.
best is to own the router, you have.
then login to it and set it up for wpa./wpa2
wep off.
and a nice password for wifi so others cant hack it. in the hood.
then use those credentials all all your toys. xbox, PCs and cell.
that is the best way
the access point is covered in you manual for the router
there is AP button there, you push.
the PC in question my guess is the drivers are no good.
missing wrong, or corrupted.
no PC full model stated.
no OS stated
no router stated.
so answers will be weak to wrong,.

Internet settings for AT&T


Title: Att
Bearer: GPRS
Auth: PAP
User: [email protected] (all caps)
Password: CINGULAR1 (ALL UPPERCASE)
APN: wap.cingular

Browser>Settings>Profiles: (Internet Setting)

Service Name: Media Net
Homepage: http://www.google.com
Connection mode: TCP without proxy
IP: (blank)
proxy: (blank)
Security: (blank)
Access Point: ATT

Messaging>Settings>MMS>MMS center: (MMS setting)

Title: ATT MMS
MMSC URL: http://mmsc.cingular.com/
Connection Mode: TCP with Proxy
Access point: ATT

To get google and all your other java web access make sure that this is the only profile you have in the Access Point. This will default as your java web setting & streaming setting. So you can now stream youtube & use Opera Mini 4.

Best regard:

Henk®Muskita ©2009.

So you are saying you cannot login to the router itself due to a changed password. The default login is admin and password (or 1234).

If none of these work then you will have to reset the router back to the factory defaults. There is a reset button on the back of the router. Find a paper clip and press the button for approx 10 seconds or until the test light on the front starts blinking. If all goes well the default login should now work. Remember, anything set before as far as static IP's, Ports, Security will be cleared out.

Good luck and thanks for using FixYa

For the normal at&t apn settings, or also called at&t wap settings, these are the values you should use
Name: ATT
APN: wap.cingular
Proxy: <Leave in Blank>
Port: <Leave in Blank>
Username: [email protected]
Password: cingular1
Server: <Leave in Blank>
MMSC: http://mmsc.cingular.com
MMS proxy: wireless.cingular.com
MMS port: 80
MCC: 310
MNC: 410
Authentication type: <Leave in Blank>
APN type: default,supl,mms
APN Protocol: Leave it to the Default one

at&t apn settings 4Gdetails: If you have a 4G phone (e.g. iPhone 5, Galaxy S4, HTC one, etc) you should try using these at&t apn settings 4G. They run faster and more stable connections.
Name: ATT HSPA+
APN: phone
Proxy: <Leave in Blank>
Port: <Leave in Blank>
Username: <Leave in Blank>
Password: <Leave in Blank>
Server: <Leave in Blank>


MMSC: http://mmsc.mobile.att.net
MMS proxy: proxy.mobile.att.net
MMS port: 80
MCC: 310
MNC: 410
Authentication type: <Leave in Blank>
APN type: default,supl,mms,hipri
APN Protocol: Leave it to the Default one
Bearer: leave it to the Default one at apn settings Step by Step Configuration

Hello,

Sometimes you can get in by the default code 0000. If that doesn't work you will have to contact your carrier. I have ATT and my father has had the same problem several times, we called ATT and they were able to crack his code from their end and tell him the code.

Good Luck,
John