"The default gateway is not available."

[Michic]

I bought a new computer and received it today, it's running Windows 7 (64-bit) everything worked fine for about 15 minutes or so until it began randomly disconnecting. When I would run the troubleshoot manager I would always get the same response: "the default gateway is not available". I'm not sure if it has to do with my installation of AVG or is there more to this issue than I thought. I did some research and it seems that other people are having the same issue as well but I'm not sure what to do about this...Any suggestions??

 

[richc46]

A comon problem for those using

nvidia drivers. Is this your situation?

 

[Michic]

I don't have an Nvidia driver, I have a Realtek ethernet driver, a friend suggested that I uninstall it and reinstall it which I did and worked for the remainder of the day until later tonight, it's not as frequent as it use to be but still as irritating...Any ideas??

 

[richc46]

This sould keep you busy for a while. I truly hope that you find the cause of the problem.

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Some of the areas are rather advanced, try the ones you are comfortable with.

 

[Michic]

I have Windows 7, would this still apply??

 

[Michic]

System Manufacturer/Model Number N/A OS Windows 7 64 bit CPU AMD Phenom II X3 Triple-Core Processor 710 (2.6GHz) AM3 Motherboard MSI GF615M-P33 Socket AM3/ GeForce 6150SE/ DDR3/ A&V&GbE Memory 4GB STT DDR3-1333 2GB/128x8 CL9 Memory Graphics Card(s) nVidia GeForce 9800GT 512MB 2DVI/HDTV PCI-Express Video Card Sound Card Onboard Audio Monitor(s) Displays N/A Screen Resolution N/A Hard Drives 320GB SATA2 7200rpm 16MB Hard Drive

 

[richc46]

I have Windows 7, would this still apply??

All recommendations should apply to 7. Before you attempt these remedies or any other changes, always make sure that you make a System Restore point, so that you can return to a point in time when everything worked, just in case things get worse.

 

[Michic]

It disconnected me for the rest of the night last night, and when I tried to fix the problem it either shows up with "There might be a problem with the driver for the Local Area Connection adapter" with the occassional "The default gateway is not available". Sometimes the error diagnosis claims that the ethernet cable isn't plugged in when it is. By the way when this happens it automatically reconnects a minute later...Also no one else in my household is experiencing this issue. I'm assuming it may be a hardware issue considering when I uninstalled/reinstalled the Realtek ethernet driver it worked fine for a couple of hours and later on the error persisted.

 

[richc46]

In search, type device manager. Then go to device manager. See if any drivers need updating or are causing problems. Also type in search, event viewer and check out any problems. Check out perfomance montior for problems.
On the bottom right near the clock, right click on the monitor and then troubleshoot.

 

[Michic]

I got the computer yesterday its been like this since I got it. I got d/c'd again just now with another error this time stating "A network cable is not properly plugged in or may be broken".

 

[richc46]

Respectfully, for your consideration. A new computer, think you should take it back for an exchange?

 

[brady]

did you update your smbus driver?

can you ping 127.0.0.1

what does your "ipconfig /all" say?

onboard nic? PCI?

 

[Michic]

http://i23.photobucket.com/albums/b376/BornToBeDamned/cmd.png?t=1262825439

 

[Michic]

Whenever I would run the cmd it would disconnect as well

 

[aem]

Guys, from the error of no gateway available, it doesn't seem to be an issue realating to devices, rather a connection/setup issue. If your modem and router are set to auto config - DHCP, then everything you need to connect to the internet via your ISP is provided. Where you might still run into issues is if the adapter is runned by a third party software. This too is relating to setup/config.

Anyway, from the ipconifg, the default gateway, is the 1.1 which theoretically should be correct as it normally is the first IP of your network. There is something about the settings in tcp/ipv4 or ipv6 that is troubling.

 

[brady]

uninstall ipv6

 

[Ivon]

I would say it's an issue with the Realtek drivers...I have an EVGA mobo that uses a Realtek chipset for ether/sound. Windows 7 poped up about 2months with an update alert (Defender) there was also an optional, which was Realtek ethernet drivers. Since then I've had random disconnects with the "default gateway cannot be found", Troubleshooting repairs this and it works fine....sometimes days; or at the time of this post 15min. If it happens again I think I'll uninstall the Realtek-specific drivers and just run with the generic drivers that shipped with the Win7 OS.

BTW: Realtek has had optional updates now 4 other times...2 of which were issued a mere week apart; me thinks Realtek is to blame for this.