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Windows 7: Internet drops at random intervals, applications freeze. Lots of info!

28 Apr 2015   #1
Amantis

Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.141211-1742)
 
 
Internet drops at random intervals, applications freeze. Lots of info!

Ok, so my laptop has been on its last legs for a while now, always something. Recently, the fan stopped working so I have to diligently make sure it doesn't overheat. I was playing an online video game 2 days ago when it overheated and crashed (forced shut off to de-powered state to prevent damage, not a bluescreen). When I brought it back up, I started having some really bad problems. The game I was playing wouldn't start citing "Memory at address 063eaff0 could not be written" After deleting the whole game and restarting the computer I got it re-installed, it works fine now, that's resolved, I guess.

I think this crash broke something though, because now my internet keeps cutting out at random intervals, and Chrome keeps freezing. The Chrome freezes actually almost always predict an internet drop.

So I booted into HP's system diagnostics and ran a memory test, it says I passed. Ran a full scan, hard disk passed, processor passed, WLAN passed, PCI Devices pass, battery pass, . Basically everything is passing but I can't actually complete a full scan because it takes 2 hours and apparently is really using my system to its max ability, which is making it critically overheat and shut off.

So I booted into a recovery CD to see if maybe a system file was corrupted during a power loss crash, but apparently I am mis-remembering how recovery CD's work and my only options are to restore to factory default or restore to an earlier point, not to just re-install all the necessary system files.

Next step was wait for one of the outages and run windows network "Troubleshoot Problems" tool, it did it's thing and actually, miraculously, gave me some sort of real problem other than "Check that you're connected to the internet". What it told me was: "Your computer is trying to use a DNS server that is incorrect or doesn't exist."

My Chrome no connection error code is "DNS_PROBE_FINISHED_NO_INTERNET"

Please don't read this last line and tell me to change my DNS server with no further explanation. There are other computers in the house, and they are connected to the same wifi, and are having zero problems. Also DNS issues do not explain my chrome actually freezing. Also, we're using google's DNS servers.

Attached is a rar with all the diagnostics I could get my hands on, and here is a contents list as well.
Quote:
Directory of C:\Users\Amantis\Downloads\Computer Diagnostics

CPU_Z_DIAG_AMANTIS-LAPTOP.txt
DxDiag.txt
pingplotter.png
<DIR> Guild Wars 2 crash dump
Crash.dmp

<DIR> Windows Network Troubleshooting Diagnostics
<DIR> NetworkConfiguration_cab
ipconfig.all.txt
route.print.txt

19524D80-986F-4247-9921-55744935ED43.Diagnose.Admin.0.ETL
Also as a Google Drive link




Attached Files
File Type: rar Computer Diagnostics.rar (114.1 KB, 1 views)
My System SpecsSystem Spec
.
29 Apr 2015   #2
Skalli

Win7 Enterprise/Professional (x86-64)
 
 

Quote   Quote: Originally Posted by Amantis View Post
snip

1.
I think this crash broke something though, because now my internet keeps cutting out at random intervals, and Chrome keeps freezing. The Chrome freezes actually almost always predict an internet drop.

snip

2.
So I booted into a recovery CD to see if maybe a system file was corrupted during a power loss crash, but apparently I am mis-remembering how recovery CD's work and my only options are to restore to factory default or restore to an earlier point, not to just re-install all the necessary system files.

3.
Next step was wait for one of the outages and run windows network "Troubleshoot Problems" tool, it did it's thing and actually, miraculously, gave me some sort of real problem other than "Check that you're connected to the internet". What it told me was: "Your computer is trying to use a DNS server that is incorrect or doesn't exist."

My Chrome no connection error code is "DNS_PROBE_FINISHED_NO_INTERNET"
snip

1. Sounds more like a socket problem. We talk about that in 3.

2. For corrupted files, use chkdsk: https://technet.microsoft.com/en-us/.../ee872425.aspx
Edit: Ah, sorry. I always mix up chkdsk and sfc. https://support.microsoft.com/en-us/kb/929833

3. Open command prompt (type "cmd" in search and enter). Type "netsh winsock reset", enter. You can also do an "ipconfig /flushdns" but it should be okay after a restart.

Any more problems?

Also, I suggest using specialized tools for things like memory testing (memtest) and the HDD manufacturer's disk tools (Seagate, WDD, ...they all got their specific tools).
My System SpecsSystem Spec
29 Apr 2015   #3
Amantis

Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.141211-1742)
 
 

Hey, I have some interesting info after today. First of all, I did both those cmd's yesterday before posting the thread they didn't do anything, not sure how its related to the actual chrome freezes if its just a dns thing. But the interesting thing is, if I'm connecting to something that's just IP based, and isn't having to look up the IP via a dns server, I don't seem to get these internet blackouts you can see in the PingPlotter picture. I played Guild Wars 2 for a solid 2 and a half hours without dropping long enough for the ping timeout to disconnect me, which is unheard of these past 2 days. Leading me to believe that the DNS errors were onto something. Could DNS lookups be somehow triggering these freezes and connectivity losses? I know my fan is an issue btw, I'm ordering a brand new one on Friday when I get paid, along with some additional cooling methods.

Going to try to run all these commands again and give it a fresh restart, and run memtest in the morning (its 4:30am) Will update on that but if anyone else has idea don't hesitate to throw them into the thread too!

Quote:
C:\Users\Amantis>sfc /scannow

Beginning system scan. This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.

Windows Resource Protection did not find any integrity violations.

C:\Users\Amantis>
My System SpecsSystem Spec
.

18 May 2015   #4
Amantis

Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.141211-1742)
 
 

I replaced my fan and got a cooler, my laptop runs at a very nice temperature now and it's still happening.

"netsh winsock reset" and a reset has done nothing, I still have the problem.
My System SpecsSystem Spec
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 Internet drops at random intervals, applications freeze. Lots of info!




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