Network Connection

Hi Experts,

My computer keeps dropping off the network every few days, changed adapters, have done updates, switched cables. It just wont go away.

I found this in the event log:

The Network Diagnostics Framework has completed the diagnosis phase of operation. The following repair option was offered:
Helper Class Name: AddressAcquisition

Root Cause: The default gateway is not available
The default gateway is a device that connects a local network or computer to the Internet. A broadband modem or router is usually the default gateway.

Root Cause Guid: {f2f9c581-a2fb-416f-a592-567b97bfc040}

Repair option: Investigate router or broadband modem issues
If you're connected to a hotspot or domain network, contact the network administrator. Otherwise:
    1.  Unplug or turn off the device.
    2.  After all the lights on the device are off, wait at least 10 seconds.
    3.  Turn the device on or plug it back into the power outlet.
To restart a router or modem that has a built-in battery, press and quickly release the Reset button.

RepairGuid: {9513cc1c-4a26-4cb8-bf89-0a82129bd105}
Seconds required for repair: 63
Security context required for repair: 0
Interface: Local Area Connection 2 ({20ff9482-bd38-4e66-9a27-b57577b93627})

But dont know how to locate the GUID that is the root cause.

I am running windows 7 32 bit.

Look forward to hearing from you.
Who is Participating?
isdd2000Author Commented:

Just a quick update, i changed the port on the wall and am monitoring network connectivity for that machine. So far changing the ethernet to another port. Looks like it is a faulty cable in the wall!
Launch the cmd window with admin rights and initiate a:

netsh winsock reset
isdd2000Author Commented:
Hi BlackBoxTech,

What does this command do?
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isdd2000Author Commented:
Found it, resets the TCP ip stack.

Will try later today.

Which reminds me I did a reinstall a few months back and did not fix the issue. I did reinstall all previous applications though.
Do other computers on the network have the same problem?

Have you checked the device you are connecting to? It may be that which is screwing up.
I have a 2wire gateway that has a similar problem, it looks like it's working but only way to access internet when it plays up is power cycle it.
isdd2000Author Commented:

No other computers have an issue on the network. Ive changed network points, cables with no change. Sometimes it takes a few restarts to get it going!
did you say you changed the network card also?

As it could be simply a faulty card.........
isdd2000Author Commented:
I have changed the network card yes, I think it maybe software related which is why I posted the GUID from the event logs
Try the flushing DNS.  Make sure all internet browsers are closed when you do this.

Open elevated command prompt:

Type: ipconfig/flushdns

Also check the following in Control Panel > Administrative Tools > Services

Make sure all of the following services are started and are set to automatic.

DHCP Client
DNS Client
TCP/IP Netbios Helper

Make sure the following service is started - it doesn't need to be set to automatic, it will startup when needed but it wont hurt to set it to automatic.

Computer Browser

If you can check these all services are showing as started when you actually have the problem, that will also help us.

What make and model modem/router do you have?
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