I have a seagate central 3TB NAS which is returning very slow file transfer speeds of just 4mbps.

My router is a Buffalo Airstation WHR-G300N and is showing 300mbps connection speed. It is in N (2.4GHz) mode only with 40MHz channel width.

My Laptops wireless card is limiting my connection speed to 65mbps but I would expect to be able to achieve a transfer speed higher than 4Mbps.

Is there anything else I can check/Change? the review sites I've seen claim to have achieved more than 20mbps write speed, I'd be happy with that!

  • 1
    I'd strongly suggest that you try connecting via an Ethernet cable. Wireless networks have quite a few unknowns - you may "see" 300Mbps as a setting, but you never know what the interference looks like - overlapping neighbor's access points, "noisy" RFI sources. Have you looked at the WiFi spectrum using MetaGeek's INSSider (the free version)? It will help you check some of the details of the WiFi network and its performance. – Milen Jul 28 '15 at 19:49
  • hmmm INSSider shows that my router is offering b,g,n, data rates even though in my DD-WRT settings screen its set to N only – xyy81t Jul 28 '15 at 20:14
  • Does INSSider show any overlapping networks from other neighboring access points? What about signal-to-noise ratio (S/N or SNR) - should be in dB. – Milen Jul 29 '15 at 11:26
  • There was so I changed to channel 11 which was clean but no change in transfer speed. Will check snr when home later, thanks – xyy81t Jul 30 '15 at 11:56
  • Sorry for the stupid question, but how do you measure the transfer speed? – Milen Jul 30 '15 at 16:41

Unfortunately, that speed is quite close to what I get in a similar wireless setup. The theoretical max would be (65/8) megabytes/second, and network overhead takes care of the remaining difference.

  • What does 65/8 mean? – Layke Nov 30 '15 at 14:29
  • Merely bits to bytes conversion – Kartik Moudgil Nov 30 '15 at 14:39
  • Ah okay. I got it :) I see from the original question, he referred to 65Mbit. – Layke Nov 30 '15 at 15:44
  • Yeah, I learnt the hard way about these manufacturer quoted speeds vs what you actually get :( – Kartik Moudgil Nov 30 '15 at 15:46

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