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Fast, and slow, wired and wireless, Windows 7, different results different PCs

notonyourtintype

New Around Here
Hi folks,

I need some help here. Using a Belkin Pre-N F5D8230-4 wireless router and two WINTEL laptops, I've been seeing some wierd throughput problems. The router is default setup; Dell Studio 1735 laptop running Windows 7 32 bit Ultimate, and Sony Viao laptop also running Windows 7 (64bit) Ultimate. Prior to upgrading both machines from Vista, they had been running wirelessly to the Belkin and I had not seemed to notice wierd throughput problems.

But lately...

The Dell laptop sits perhaps a foot from the router, on my physical desktop. In wireless mode, attempting to have WIN7 do a file move to a NAS (NAS hardwired to the router) would result in a LONG "Discovery" phase while Windows estimated files to move, size, time... and could claim to need 5 hours to move a CD worth of music, or a few hundred little web page files totalling perhaps 50MB. Transfer rates of 100 bits/second ... no K, no M... could be seen.

Disabling the radio in the laptop, and going Cat5 to the router, and megabit-class transfers, handfuls-of-seconds to do the discovery, are what I see.

Pitiably slow xfr rates from the Dell wireless to/from the WAN side of the router, or to other LAN destinations, make me think that the NAS (Buffalo Terastation) isn't part of the problem.

The Vaio laptop sits perhaps 30 feet away, in another room, light concrete walls inbetween. 100MBps/200MBps transfer rates to the NAS, on the same set of files. Discovery/Calculating takes a second or so.

I've tried to look at the blindingly obvious things. There are some software differences between the two machines, of course, both applications, OEM installed stuff, and a few Services level things. As best I can tell, all drivers and the router firmware are up to date. Two Bluetooth mice share the same office. But that's that.

AVAST has been the anti-malware on all platforms; but I can't say I can think how a malware would muck up the wireless but not the hardwired network connection.

Help? Ideas?
 
Are you sure that changing the OS on the laptops is the only thing that changed?
What transfer speeds did you get previously? Any new wireless gadgets in the house?
Or maybe your neighbors got something that is interfering with your network.

Perhaps the wireless client setup changed when you changed OS. Verify that the client settings are the same as they were previously. Also, double check for updated drivers for the clients.

If your laptops have N adapters, you should consider upgrading your router to an N router.

Keep clients at least 10 feet away from the router or you may get receiver overload, which will reduce throughput.
 

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