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Windows 7: RAR files being corrupted

16 Oct 2011   #1

Windows 7 Professional 32-bit
 
 
RAR files being corrupted

Recently after moving and using different internet than I have before whenever I download a rar file, more often than not, when it comes to extracting it I get a CRC error. It's too big a coincidence that this many of the rars I download are are corrupt files for it not to be something to do with my new internet set up here.

Any ideas as to what could be doing this? It's a new ISP and a new router.


My System SpecsSystem Spec
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16 Oct 2011   #2

Microsoft Community Contributor Award Recipient

Windows 7 SP1, Home Premium, 64-bit
 
 

I've never seen that on a consistent basis. I don't use a router.

Can you bypass the router temporarily to see if it persists?

If this is from newsgroups, are any repair files offered (PAR files)?

Can you try another app to unpack the RARs??

If you are just downloading something from an average website and it happens time after time on many different websites, I'd have to assume it is a local problem, not related to your ISP.
My System SpecsSystem Spec
16 Oct 2011   #3

Windows 7 Professional 32-bit
 
 

It happens when I download from fileserve, rapidshare, megaupload and the like. It's not always. I guess they could just have been corrupted somewhere else. I've downloaded a couple of multipart rars recently and they have come up with this error.
There were some with repair records but not all. I've tried unrarring with winrar and 7zip.

I could just be on completely the wrong track and they could indeed be bad files.

Can't really do much troubleshooting with the router.

I'm living "with" some people as a lodger in a separate section of the house. They bought a new wireless router but as the signal wasn't strong enough I'm using a powerline adapter with a wireless router plugged in (just the wireless not the modem)
My System SpecsSystem Spec
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16 Oct 2011   #4
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

Are you are on two wireless routers? Have the people move the new router to a different location.
My System SpecsSystem Spec
17 Oct 2011   #5

Windows 7 Professional 32-bit
 
 

i can't that's why we had to get the powerline adapters. If there was a place for it where it would reach me, it would be there
My System SpecsSystem Spec
17 Oct 2011   #6

Vista Ultimate X64/ Windows 7 Dual-boot
 
 

3 main culprits that will cause this...
Flakey connection
HDD read/write errors
RAM errors.
My System SpecsSystem Spec
17 Oct 2011   #7
BBK

Windows 7 Home Edition x64
 
 

I would imagine the 'internet over powerline' is causing noise on your line and therfore causing the CRC errors.

Stupid idea, but anyway to run your own patch cable from the router to your room?
My System SpecsSystem Spec
17 Oct 2011   #8

Windows 7 Pro. 64/SP-1
 
 

This may help. Every thing from a screen door to a cell phone.

Mac-Forums Blog » Networking » Wireless Networking FAQ
My System SpecsSystem Spec
17 Oct 2011   #9

MS Windows 7 Ultimate 64-bit SP1
 
 

You can try to buy a wireless enhancer to overcome this problem.

Alfa AWUS036H 1000mW 1W 802.11b/g USB Wireless WiFi network Adapter with 5dBi Antenna and Suction cup Window Mount dock - for Wardriving & Range Extension

This device costs around US$32 or so and will give you a good connection from a distance. I am using it and it is catching signals from a long distance.

Hopefully this should solve your problem.
My System SpecsSystem Spec
17 Oct 2011   #10

Windows 7 Professional 32-bit
 
 

Hmm thanks for the suggestions guys. Not sure I will be able to do any of them though.
Can't imagine the landlord's response to "can you buy these things so my pirate tv shows don't get corrupted?" lol

It's not a massive deal as I can get them to extract then rebuild so they do play, just a bit of an inconvenience.


Quote   Quote: Originally Posted by patio View Post
3 main culprits that will cause this...
Flakey connection
HDD read/write errors
RAM errors.
Is there a way to test for those bottom two?
Quote   Quote: Originally Posted by BBK View Post
I would imagine the 'internet over powerline' is causing noise on your line and therfore causing the CRC errors.

Stupid idea, but anyway to run your own patch cable from the router to your room?
Won't be able to do that unfortunately as it would need to go outside then back inside again
My System SpecsSystem Spec
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 RAR files being corrupted




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