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Windows 7: ICS, DNS/SharedAccess_NAT error 31004


05 Aug 2012   #1

Windows 7 Enterprise x64
 
 
ICS, DNS/SharedAccess_NAT error 31004

I'm using ICS to share my internet connection from one computer (Server 2008 R2 x64) to others. The server has two NICs, internet and LAN.

Occasionally (sometimes multiple times a day, sometimes once a week), it appears as though the internet connection has disappeared on the host computers. However, it turns out to be a DNS problem. Accessing the internet still works using IP addresses and some applications still work if they don't rely on DNS.

The primary fix has been to just restart the LAN NIC on the server.
Another seems to be to simply wait for a while. I'm not always here to restart the NIC, but it's always in a working state when I get back even though I've got complaints about random downtimes.

The following event is logged roughly at the same time as the problem occurs:
Level: Error
Source: SharedAccess_NAT
ID: 31004
"The DNS proxy agent was unable to allocate 0 bytes of memory. This may indicate that the system is low on virtual memory, or that the memory manager has encountered an internal error."


What could I try to fix this problem?

My System SpecsSystem Spec
.

05 Aug 2012   #2

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by ajpanton View Post
I'm using ICS to share my internet connection from one computer (Server 2008 R2 x64) to others. The server has two NICs, internet and LAN.

Occasionally (sometimes multiple times a day, sometimes once a week), it appears as though the internet connection has disappeared on the host computers. However, it turns out to be a DNS problem. Accessing the internet still works using IP addresses and some applications still work if they don't rely on DNS.

The primary fix has been to just restart the LAN NIC on the server.
Another seems to be to simply wait for a while. I'm not always here to restart the NIC, but it's always in a working state when I get back even though I've got complaints about random downtimes.

The following event is logged roughly at the same time as the problem occurs:
Level: Error
Source: SharedAccess_NAT
ID: 31004
"The DNS proxy agent was unable to allocate 0 bytes of memory. This may indicate that the system is low on virtual memory, or that the memory manager has encountered an internal error."


What could I try to fix this problem?
From my point of view using ICS is not a reliable way to run a network.

If you really want a trouble free network use a modem and a router.
My System SpecsSystem Spec
06 Aug 2012   #3

Windows 7 Enterprise x64
 
 

It's a small home network, routers cost money.
I've heard lots about unreliable routers, which I'm guessing is what you get with the cheap ones. Downtime because of router problems is unacceptable, at least now I can remote connect to the server to fix things.
My System SpecsSystem Spec
.


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 ICS, DNS/SharedAccess_NAT error 31004




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