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Internet connection lost

by Madison / July 16, 2010 7:22 PM PDT

Computer - Acer AST 690
O.S.- Vista

About a week ago my wife?s computer suffered a crash and was shut down. After rebooting it seemed to be fine, but she discovered that the (DSL) internet connection was lost. We have two computers wired to a router - mine is working fine. Here?s what we?ve done so far in an effort to fix the problem:

Went back to a restore point before the problem existed
Checked the NIC in device manager (all okay)
Reloaded the NIC drivers
Purchased and installed a new NIC
Tried to ping Google with no success.

The same condition exists as before all of the attempted fixes were done which is no Internet connection

Here?s what we now have:

Device manages shows hardware is functioning properly.
Connection status window ... IPV4 ........ not connected
Connection status window ... IPV6 .........not connected
Windows diagnosis: Network adapter is experiencing driver or hardware related issues.

So, the same problems exist before and after the fixes and hardware replacement. Everything?s the same and she still has no internet connection.

We don't know what else to try. Any help appreciated.

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What happened....
by Papa Echo / July 16, 2010 8:57 PM PDT

...or what was being done on the computer just before the crash*, or do you know what caused the crash* ?

* : "Crash" is a word used too much. What is a "crash" ? Please describe what happened, so we can determine what type of problem it is...

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Can she connect . . .
by Coryphaeus / July 16, 2010 10:30 PM PDT

to the Internet if she plugs into the modem, and bypasses the router?

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answer to both
by Madison / July 16, 2010 11:13 PM PDT
In reply to: Can she connect . . .

Re the ?crash?, Task Manager froze up and wouldn?t budge, so she shut down and restarted with normal boot other than the fact that the connection was gone.

Re going around the router ... can try but keep in mind that my computer is wired directly to the same router and is working fine, and hers did too until this incident.

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Task manager froze up.....
by Papa Echo / July 17, 2010 1:12 AM PDT
In reply to: answer to both

Why was the task manager up ?
Did some program or application stopped working or became unresponsive and you were try to close th program ? If so, what program ?

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don't know why
by Madison / July 17, 2010 9:07 AM PDT

Don?t know why it froze up. She had opened it earlier for some reason and left it open for a period of time. When she tried to close it, it hung up for reasons unknown and froze. Not sure how it can relate to the problem, but will consider anything at this point.

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by Papa Echo / July 17, 2010 6:01 PM PDT
In reply to: don't know why

"...she had opened it for some reasons..."

Well, there may be a clue there in the "reasons". That is why I asked. Without knowing that, I would also not know how that could be related. Somethng must have happened for the Task Manager to be there, before the hang and which may have also caused loss 0f Internet connection.

New NIC. Have you installed its drivers ? In the meantime, try using only IPV6, or IPV4, but not both together. Try the usual. At a command prompt, type in ipconfig /release, ipconfig /renew, ipconfig /flushdns one after th other, each followed by Enter. Exist command prompt. Also make sure the IPs and DNSs numbers[as provided by your ISP] are still there.

Also try to trace a route to the modem/router [tracert], and try tracert and ping on the local host [] too.

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more details
by Madison / July 18, 2010 7:49 AM PDT
In reply to: OK

Ipconfig/release ... resulted in ?The operation failed as no adapter is in the state permissible for this operation? Note that we have tried this both with the new NIC and the original and both after numerous re-installs of the drivers (which were, until last week, working with the original ethernet).

Traceert resulted in ?Tracking route to ******* over a max of 30 hops ... 1 <1ms <img <1ms ***** [] ... Trace Complete

Ping .. 4 packets sent .. 4 rec?d .. 0 lost

We disabled IPV6 early in the process to eliminate that possibility.

Result of connect attempt: ?Windows cannot find any networks?
(In Local Area Connections, we have 2 installed - 1 enabled and 1 disabled)

Note: She had opened the Task Manager a period of time before it froze probably to check on downloads (as she recalls). It was left running for a period of time, when she got back to what she was doing and tried to close it. The TM on my machine has done the same thing from time to time, with no ill effect other than the temporary freeze.

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by Papa Echo / July 18, 2010 10:48 PM PDT
In reply to: more details

Since you can ping and tracert the local host [] successfully, there seems no fault with the computer. Now see if the computer can actually reconize and communicate with the modem. Ping the default gateway [usually the modem address,but if changed, can be found with ipconfig /all In the mean time, try a different WAN port, or exchnge with ours ? [this will find a bad WAN port].

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by Madison / July 19, 2010 12:15 AM PDT
In reply to: Ok..

Ipconfig/all results in no info being displayed at all. The lines starting at (on my machine) ?Ethernet adapter Local Area Connection? are completely missing.

Pinged (router?s address) and got ?transmit failed error code 1231".

We have a router with an internal modem and have tried all of the sockets with both computers and have switched cables between the two. Mine works fine in all cases - hers doesn?t work anywhere.

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Error 1231 ..
by Papa Echo / July 19, 2010 1:55 AM PDT
In reply to: results

At last,a clue - a big one ! Vista specific problem... This problem is related to IP/TCP. But I regret that it is now quite out of my limited knowledge for a solution. I am sure someone else will come in....In the meantime, do put transmit failed error code 1231 unto google for some interesting reading.

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Error 1231, etc.
by Madison / July 20, 2010 4:15 AM PDT
In reply to: Error 1231 ..

1231 is a Vista error code, but not necessarily a diagnosis of a Vista problem. It covers too wide a field of possible problems to be much of a clue, from what I can see.

At this point, we have no LAN, which would seem to be essential to changing the IP/TCP config or dealing with the DHCP.

I had assumed that a LAN shows up pretty much automatically when the machine loads the correct NIC drivers and recognizes the NIC, but apparently this isn?t always the case. Device manager shows both the original onboard and newly purchased NIC to be functioning fine, and we have re-installed the drivers for each many times. So, on a hardware level, the devices are working and recognized, but on a functional level, they?re not there, and the computer cannot find or use them to establish a LAN. As I mentioned earlier, the ipconfig/all shows absolutely nothing having to do with the card itself - it?s completely missing.

In researching this thing, I cannot find anyone else who has ever run into this exact situation, so we?re running out of options. Could try a Vista fresh install, but I?m wondering how that?s different from going back to a restore point, which we?ve already done. Could this be mobo damage? I just don?t know what else to try.

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Maybe time to....
by Papa Echo / July 20, 2010 9:33 AM PDT
In reply to: Error 1231, etc.

...move over to the Vista Forum ? [with a link to this thread]. Yes- your problem may be unique, as otherwise, the modrators and those in the know would have came in.

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Problem gone...
by Madison / July 26, 2010 1:35 AM PDT
In reply to: Maybe time to....

Apparently, we?ll never know the exact details of what the problem was. After exhausting all other options, we re-installed Vista, and all was back to normal. Going back to a restore date didn?t help at all, but this did. Itsa mystery, but prolly one not worth trying to figure out.

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