At&t Wireless Card Error 668
About AT&T About Us Investor Relations Skip Navigation Coverage Maps Wireless U-verse U-verse with AT&T GigaPower Store Locations & Appointments at&t aircard error 668 Language Página en Español Sitio en Español Other Language SitesThis link t 668 bk will open a new window Welcome to the AT&T Community Sign upLog in AT&T Community Forums Submit Wireless U-verse DIRECTV Internet Home Phone Digital Life Business Blog Community Home Back to top AT&T / Community / Wireless Forum / Features & Services / Data & Messaging Features, Internet Tethering / Error 668 or Invalid APN at&t home [Menu] forums.att.com https://m.att.com/myatt/dss.action?refId=SANDBOX_BASED_SITE Data & Messaging Features, Internet Tethering Log in Search forums Ask a question Posts Members Reset field Search in Wireless Forums Sign up | Log In | Help Wireless Forum Explore Community Home Wireless U-verse DIRECTV Internet Home Phone Digital Life Foro en Español Business Community Blog Community Tour Guidelines Learn About ACE Community How-To Search community Posts Members Search the community Search the ACE Lounge Search the Water Cooler Forums Search the Wireless Forums Search the U-verse Forums Search the DIRECTV Forums Search the DIRECTV NOW Forums Search the Internet Forums Search the Digital Life Forums Search the Foro en Español Search the Business Forums Ask a question Reply Topic Options Subscribe to RSS Feed Mark Topic as New Mark Topic as Read Float this Topic to the Top Bookmark Subscribe Printer Friendly Page « Message Listing « Previous Topic Next Topic » PostedFeb 2, 2009 8:04:48 AM lilbudro Mentor Error 668 or Invalid APN My connection quit working this morning.Whenever I try to connect, Sierra Watcher gives the error: Invalid APNor ATT gives error 668.I have never had this problem before. Solved! Go to Solution. Me too My connection quit working this morning.Whenever I try to connect, Sierra Watcher gives the error: Invalid APNor ATT gives error 668.I have never had this p
signal available, an error message stating Error 668 caused the connection to terminate. I tried the usual problem solving of removing the aircard and reinserting it, restarting the ATT connection manager, and restarting my laptop. Nothing worked, and it continued to produce the Error 668 message. As I would rather squeeze turnip juice than call AT&T Wireless for any technical support issues, I tried A few Google searches which netted https://forums.att.com/t5/Data-Messaging-Features-Internet/Error-668-or-Invalid-APN/td-p/1726911 some promising results. While I am not sure exactly what fixed my problem, it is now working again without any hardware replacement. Feel free to try the methods below. Reinstall the Firmware If you have a different model or Mac OS, you can start at the Sierra Support website Otherwise, visit the 881 AirCard Support Downloads page http://www.mattsilverman.com/2008/08/error-668-sierra-881-wireless-aircard-att-3g.html for Windows Download and run the firmware application, while keeping your aircard plugged into the PCMCIA slot. Some people mentioned that installing the Connection watcher utility from the support downloads page may also help with this issue, but I did not need to use it. After reinstalling the firmware, I attempted to connect again but still received the same error 668 code. I then moved to this next little workaround. Install New ATT Connection Profile Using wap.cingular This is what I think finally fixed my problem, but it did not work without first reinstalling the firmware. 1. Edit connection profiles in ATT Wireless Connection Utility 2. Click the "Add" button on the profile manager window, then select "AT&T" and hit next.3. Change isp.cingular to wap.cingular, and leave all the other input boxes as is. My result looked like this: 4. Hit next, make sure both radio buttons are select to "Obtain IP Address Automatically" and hit next again.5. Give your new profile a name, I used AT&T (2). I chang
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