Slow Transfer Speed over LAN

harbinger113

Reputable
Apr 13, 2014
2
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4,510
I've looked and no one has similar problems with any solutions. My issue is that I have a NAS/Media Server box and when I try to download or upload any sort of files from it, the speed is painfully slow. Both computers are wired directly to my router for test purposes (CAT6 cable, Router is Asus RTN66U DualBand Router. I have a Shared drive mapped on my personal computer as \\192.168.1.55\shared which is the LAN IP of the box to make sure the mapped drive should go directly over LAN and not the DDNS I have set up. Also for the purpose of testing, I disabled any other person's access to the NAS other than me for the time being.

Now, when I try and download a file, the speed maxes out at 800kbps. I have not seen anything higher. For HD specs, I have 4 WD Red Drives 3TB a piece in a Raid 1+0 on the NAS, and in my computer, a Toshiba 7200rpm HD 3TB.
With Write Speed, the upload to the NAS never goes over 500 kbps. I am at my wits end trying to figure this out and have searched for hours on end. One option that people suggested was to disable the large send offset v2 on the wireless interface cards, but that made no change. Please help. If you need any more info I can obtain it for you.
 
Solution
You can see if it is your network or something else with a old program called IPERF. It is a extremely simple program that sends data between 2 machines. It is very small and only uses memory and no disk so it should represent the fastest rates you can transfer. It tend to estimate on the low side so you should be able to get similar results with a file transfer. This tends to be simpler to run tests you can compare as you change things.
You can see if it is your network or something else with a old program called IPERF. It is a extremely simple program that sends data between 2 machines. It is very small and only uses memory and no disk so it should represent the fastest rates you can transfer. It tend to estimate on the low side so you should be able to get similar results with a file transfer. This tends to be simpler to run tests you can compare as you change things.
 
Solution