PC can't connect to internet post-lightening, laptop can

August 8, 2012 at 14:08:02
Specs: Windows 7, 64 bit, i7 920 @ 2.67Ghz/6 gigs ram
Hi and thanks in advance,

A lightening strike hit us recently (last week) and fried electronics in the house. The next morning we didn't have internet on either our PC or Apple laptop. The modem wasn't doing its blinky green light dance. I used a multi-meter; the power supply was dead. I replaced it. It did its blinky dance. I turned everything on in order; turn everything off, turn the modem on and wait, turn the router on and wait, and turn on the PC and laptop. The good news was, the laptop got the internet, albeit much more slowly and intermittently than it used to. The PC got nothing. I've fumbled around with this for a week and can't fix it. I'm not sure if what's wrong is the router, modem, or something specific to the PC.

Time Warner reported the internet is getting to my location (I called). They said the router was the problem and, consequently, not their problem.

I tried connecting the laptop to the modem directly, leaving the router and PC unconnected. This works (I get the internet on the laptop, still). I tried connecting the PC to the modem and leaving the laptop and router unconnected. This *doesn't* work (I get no internet on the PC).

Device manager shows that my ethernet card works. I tried sending a test packet to the modem. This also worked.

Here's my ipconfig /all

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : TeamBert-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Physical Address. . . . . . . . . : A4-BA-DB-FC-B4-1C
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{89784ADC-AEF1-4D3C-866C-50FEE122B4F5}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter 6TO4 Adapter:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

The computer is a newish (~2 years old) i7 with 6 gigs of ram, windows 7 64 bit.

Another unrelated issue, for bonus points if anyone knows-- my computer boots up and is black screen until Windows login. Is this a new Windows feature? How am I supposed to access BIOS? It's always done this, since we've owned it. Can only guess it's a feature?

Anyway, any idea what I can do to narrow down the problem and fix this? Thanks very much, I appreciate it.


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#1
August 8, 2012 at 14:14:01
I would suspect the surge fried more than just the PSU in your modem. Chances are it also fried the NIC on your PC as well.

Your router could also be damaged but I would start by replacing the modem completely, and then I'd get a new NIC for the PC and see where you're at after that.

Rule #1: Always, always, always use either a UPS or a proper surge suppressor for plugging in sensitive electronics. Power bars just don't cut it and unless the device specifically says it's a surge suppressor, it isn't.

I highly recommend APC products as they come with a lifetime replacement warranty for any/all electronics damaged while plugged into an APC product. I won't use anything else in my home and that's what we use where I work.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#2
August 9, 2012 at 00:39:02
I suggest to first check the router itself, cause your computer haven't got a valid ip address.
Have you tried to reset the router to factory default settings and set it up newly from scratch?

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