Forum Thread

Win 10 hard freeze kills internet for whole house??

Darknyt 445 54 December 24, 2015 at 07:41 AM
Windows 10 installed less than week, just last couple days been hard freezing ONLY when unattended and have isolated that these freezes kill ALL internet (Xfinity 125/12) in house. No freezing issues on Win 8.1. The PC does NOT even have wifi and is only at the end of 1 hard line coming off switch. Setup is as follows:
System: Intel i7 2600k | Asus P8Z68V-Pro | 16 gb DDR3 1600 Corsair | EVGA 670 2gb
Network: Motorola SB6141-->Apple Extreme 5g (wifi off)--> Trendnet 5 port switch----> All devices, including AE 6g as access point off switch as wifi for house.

At the same time as hard freezes, my wifi and hard lines would go down as well and it took several cycles of me rebooting PC, noticing internet came back, then leaving PC to freeze, internet going down - before I made the connection.

Several times now I've been able to isolate that as SOON as the Windows box freezes, the internet for the ENTIRE house goes down. Everything. As soon as I rebooted the PC, internet would come back, until Win 10 froze again.

So I left PC off all day yesterday and magically - NO internet issues.

The Win 10 freezes are irritating enough by themselves - but what in the WORLD would make it so that ALL internet goes down. Could it be some issue Comcast is sensing coming from me that is making them cut me off?

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#2
A few more questions:

When the internet goes down, are the other machines on the network able to connect with each other. Are they able to reach the router's admin interface? If you're able to reach the router admin interface, what does it report as its status?

Have you tried rebooting the router / cable modem instead of rebooting the PC?

My best guess as to what's going on:
- Some poorly behaved program (malware is possible) is flooding your router / modem with traffic
- Eventually your router / modem crashes
- The poorly behaved software then causes your PC to freeze

It's also possible that as you say, Comcast detects the traffic pattern above and cuts you off instead.
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#3
Quotidian has some great ideas on this.

1st Your router is your DHCP, DNS, etc I assume? Why use one Airport as just a hardline router then one as a AP? Location?

2nd Do both the routers have the newest firmware?

When it happens I would start rebooting things in backwards order. First unplug the ethernet from the PC, then see if from another device/pc see if you can ping others on the network.

Wondering if when everything is locked up if you rebooted the switch what would happen, Also if you connected directly to the router and then directly to the modem what would happen.

Definitely scan the PC for virus/malware with a few different programs.

As for the PC thats locking up, Make sure you have the latest bios, drivers, etc. It seems related to waking up from sleep and maybe not waking up the network card?

While a pain in the butt this sounds like kind of fun to troubleshoot. Make slow changes one at a time and think it through methodically until you find whats causing trouble.
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#4
Hmm, I wonder if it is possible for your Win 10 PC to request an IP Address renew from the router and then it {Win10 PC} gets stuck in an endless loop requesting IP over and over again until the router gives up and freezes.

To test this you should be able to unplug the LAN cable from the PC and watch to see if the router recovers all by itself. Also if you have a network hub [tamos.com] you could use it with a different computer to monitor what is happening on the network.

I would not recommend that you try to use Windows Network Monitor all by itself to view the traffic, I say this from my experience of not getting a full picture without a physical network hub on the network.

This is an interesting problem.

Thanks for posting it. look around
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#6
If you've got a spare router lying around that can handle dd-wrt or tomato, set it to transparent bridging and enable IGMP snooping on one of the lan ports. Plug problem pc into designated lan port and connect wan port to rest of network. When/if it happens again, plug another computer into the igmp port and fire up wireshark...

Far clarity, is it killing the network for other wired devices too? You could also try enabling wifi on the first router as a test. If you have another wired switch, try swapping the trendnet. What's the status of the link/activity light for that port on the switch and on the computer's NIC when the problem is occurring?
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#7
yes, sounds like 2 (or more) of your LAN devices are trying to use the same LAN IP. shut everything off that is connected to the router and the router itself. you might have to hard reset the router and set it up again. router might be failing.
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#8
Run the suspect machine off a separate switch.

Reformat the win10 machine.
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#9
figured it out.
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#10
Quote from dale_101798 View Post :
figured it out.
Ya too bad we didn't get an update on this.
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#11
Stick Out TongueEasy solution . use linux.
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#12
Quote from davidbc View Post :
Stick Out TongueEasy solution . use linux.
Yes because linux is flawless and just as versatile, who are you kidding shake head
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#13
Quote from fenderman View Post :
Yes because linux is flawless and just as versatile, who are you kidding shake head
At least with linux you could easily determine exactly what is happening without going thru the dumb windows abstraction layers
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#14
Quote from vivahate View Post :
At least with linux you could easily determine exactly what is happening without going thru the dumb windows abstraction layers
So that is a reason to move to linux? Come on. Windows is not going anywhere. There is a giltch with this system. Happens rarely. I support over 50 windows machines, they run just fine without a hitch. Grass is not greener on the linux side. My point was that the user has an issue, the solution is not linux.
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