Windows Problems Connecting to internet via U-Verse RG 3801 HGV

HughesTech Labs:

Windows Problems connecting to internet via AT&T U-verse RG (Residential Gateway) 3801 HGV.

We have discovered that certain versions of Windows has trouble getting an internet connection via the AT&T U-Verse RG 3801 HGV Residential Gateway. It took our Engineers many hours to figure this mess out! And with No help from AT&T!

The symptoms are as follows:

When rebooting or cold starting the Windows PC the internet was not available only a local connection to RG 3801 HGV. This would happen 99.7% of the time. It did not matter if the connection type from the PC was Ethernet, Wireless, static, or DHCP. This was a real issue and pain to say the least.

I am sure many Windows users have the same problem and no way to solve the problem. All AT&T could offer; was to get a newer Windows OS and or newer computer! Really! What kind of answer was that? People pay good money each month for internet service from AT&T U-Verse and that is the best their TIER 2 Tech support could offer up?

We have the fix for you, just follow these steps:

Get a pencil & paper ready!
Using any web browser, Login to the RG 3801 HGV:
http://192.168.1.254

Click the “Settings” TAB
Now Click the “Broadband” TAB, the following will be displayed:

U-Verse 3801 HGV Broadband Settings

We have marked the above image with two (2) red arrows, simply write down the complete primary DNS IP Address and the Secondary DNS IP Address on the paper you provided above.

You can now shut-down the web browser connection to the RG 3801 HGV.

Next we need to modify the DNS settings for your wireless or ethernet connection in Windows. Please see the diagram below for the proper settings:

Windows Network Settings

Notice we have set the DNS Settings for our Windows Network to use the same DNS Servers that the RG 3801 HGV uses.

Of course your DNS IP Addresses for the Primary and Secondary will be different for the general area you are located in, but if you copied the two (2) Addresses correctly from the RG 3801 HGV, then you should be able to enter them in your windows local network or wireless network settings under IPV4 Proprieties.

Important to note, it is ok to obtain an IP Address Automatically, but make sure you check “Use the following DNS server addresses” and then fill-in the ip addresses you wrote down.

Now click Ok and your settings will be saved! That’s it, now windows can access the internet instantly after a cold boot or restart!

Disclaimer:

HughesTech Labs (Hughes Technologies, Inc.) accepts no liability for the content of this blog, or for the consequences of any actions taken on the basis of the information provided within said blog. The information provided was results from our internal testing and found to work best for our current configuration.

AT&T is registered Trademark AT&T INTELLECTUAL PROPERTY II, L.P. COMPOSED OF AT&T INTELLECTUAL PROPERTY, INC. LIMITED PARTNERSHIP NEVADA 645 EAST PLUMB LANE RENO NEVADA 89502

AT&T U-VERSE is a registered Trademark of AT&T INTELLECTUAL PROPERTY II, L.P. AT&T INTELLECTUAL PROPERTY, INC., a Delaware Corporation LIMITED PARTNERSHIP NEVADA 645 EAST PLUMB LANE RENO NEVADA 89502

Windows Won’t Boot – Rootkit Virus – Combofix Download

HughesTech Labs:

There are some real nasty Windows Virus software on the Internet, if your searching the web using any of the Internet Explorer versions, then you are likely to pick-up one of these rootkit viruses while visiting certain websites. Over the past two (2) months we have fixed at least ten (10) Windows Computers that have had their MBR over written by a virus.

What does MBR mean? Master Boot Record, this is a location on your Hard-drive that tells your PC while booting where your Windows Operating System is located. If your PC has lost this MBR information, then your Windows Computer will never boot (Screen Stays Black).

Most users panic, and reformat, which when complete will rewrite the MBR, but at what cost?  You will have lost all of your data unless you have a clean backup.

Step 1:  Repair the Master Boot Record by allowing your PC to boot from a CD/DVD drive, this can be set in BIOS under BOOT options. Next, install the CD  with your Windows Operating System in the CD/DVD Drive.

Step 2:  Reboot your Computer, your PC should now be booting from your Windows CD, this will take a few moments.

Step 3:  You will be prompted as to what you want to do, simply hit “R” (repair), next you will be prompted with a list of drives, select the one that Windows is installed on, this is a numeric entry like type 1 <enter>. If you have a password setup, then you will have to enter it.

Step 4:  Now at the command prompt type fixmbr <enter> you will prompted with a do you really want to this, just enter yes

Step 5:  Type exit <enter> and remove the Windows CD, your computer should now boot.

Step 6:  Download and Run Combofix to remove the rootkit virus that caused this problem. Download Combofix here

That’s it, We have had a 100% success rate using this method, but use this information at your own risk…

Cmos Battery – Linux Hard Drive Crash On DELL Server

HughesTech Labs:

HughesTech Engineers discover the root cause for Hard Drive crashes on DELL Server running Linux. One of our DELL Servers would have a major hard drive crash about every seven (7) days.

The Server would just reboot, scan the Hard Drive, wait a few seconds for a root login at the console, then repeat the cycle.  Our Engineers would login at the console, run the ext2 fsck and repair the Hard Drive.

One Engineer while logged on as root, noticed the system time under Linux was off by about 4 hours, so he reset the time in linux, rebooted the server and set the time in the bios setup (cmos battery), everything was fine for another seven (7) days.

After the seven (7) days we had another hard drive crash on the same DELL Server, so the Engineers repeated everything the same way again, and again noticed the time was off by 4 hours, they replaced the cmos battery (CR2032) for the Real-Time Clock, reset the time and that was the fix!

Image that, a cmos battery that costs about $1.00 taking down an entire server!

We thought we would share this, for others that may be having the same issues.