Slow Network Transfer Speeds

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IInuyasha74

IInuyasha74

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May 1, 2013
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Hello,

I am having extremely slow network transfer speeds and I am at a loss to find the problem for it. If you have any ideas, I would be happy to hear them.

Yesterday I received a Western Digital MyCloudDL4100. It has dual-NICs, two WD Red 4 TB drives in a RAID 1 configuration. Both NICs are connected to a dual-band 802.11ac router. Transferring data using an 802.11g wireless key results in transfer speeds of only about 5 MB/s.

A different system on the network is connected by LAN to a switch. Both the switch and the NIC in the system are capable of 1 Gbps transfer speeds. The switch is connected to the router by means of a Powerline capable of 500 Mbps transfer speeds, yet I only manage about 2.64 MB/s of transfer speed. I have at least 3.5 TB of data to transfer, and just transferring for approximately 14 hours a day, it is going to take roughly 35 days to send all of my data to this system. There has to be a faster way, but I can't figure out why it is running so slow.

Any ideas?
 
Solution
kanewolf
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kanewolf

kanewolf

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May 29, 2013
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Your problem is connecting BOTH NICs to the router. Unless the router is specifically setup for link aggregation, connecting both links will cause problems. You should only have one link connected unless you are connected to a managed switch which supports link aggregation.
 
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K

Kewlx25

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Oct 23, 2009
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The only thing I got out of this is you're using powerline and wifi-g. Have you speedtested your network connections before trying to fumble with the extra variables of file sharing? There's a lot of potential choke points in a network and you need to accurately measure one at a time if you want to figure out what the issue is.
 
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IInuyasha74

IInuyasha74

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May 1, 2013
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I don't think that is my problem. My unmanaged switch supports link aggregation, as does my wireless router. The issue also isn't an internet scenario, it is entirely intranet.

My network topology is essentially this:

____________Cable Modem
_________________\/
___________Wireless Router
_____________/----------------\
_________D4100L______Unmanaged Switch
__________________________\
______________________Windows 7 PC


I'm trying to send files from the PC to the D4100L. The files never leave the network. They are essentially traveling up into a switch, then back down to the other devices, yet for some reason it is moving at a very slow pace.
 
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IInuyasha74

IInuyasha74

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May 1, 2013
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I've run speed tests which topped out at my max speed from my ISP, but that is to be expected. I've always had this issue transferring directly between systems.
 
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SuperSoph_WD

SuperSoph_WD

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Jul 30, 2014
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Hey there, IInuyasha74!

Sorry to hear about your headaches with the WD My Cloud DL4100! :( I'm not sure if you know about this or not, but I guess it won't hurt to give it a try. This is a link to an article from our WD KB that explains what could actually be the possible reasons for the sluggish transfer to your WD NAS: http://products.wdc.com/support/kb.ashx?id=jpN18z
It could be affected by your antivirus software and the size of the files themselves.
I'd also suggest you to check the NAS dashboard's notifications and make sure your firmware is up-to-date as well.
However, I'd still recommend you to get in touch with our technical support and ask them for assistance if none of these help you.
WD Support Contacts: http://products.wdc.com/support/kb.ashx?id=zKaNff

Good luck! :)
SuperSoph_WD

 
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kanewolf

kanewolf

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500Mbit power line adapters will give anywhere from 30 - 80Mbps -- see SmallNetBuilder chart -- http://www.smallnetbuilder.com/tools/charts/powerline/view Filter on 500Mbit and "location E" for worst case.
Your 2.5 Mbyte would be on the low end of performance but not completely unreasonable. To get reasonable performance you will have to get an ethernet cable between your PC and the NAS. That may mean temporarily relocating a switch and the NAS close to your PC.
 
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Solution
IInuyasha74

IInuyasha74

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May 1, 2013
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Thanks to all of you for your suggestions. My dad and I stumbled across a setup guide on the WD website showing the optimal ways to configure the device into the network, and managed to get it working Saturday.

After trying a half dozen different configurations with various switches and routers, it turns out that the system with an 802.11g was being slow because of the 802.11g. Ultimately we ran a direct LAN connection to his system, and the transfer speeds jumped up to about 60 MB/s.

After that, I figured it must be my powerline slowing things down, so I up and moved it into the other room with my PC, connected the powerline to a switch, and the switch to both my PC and the DL4100. I'm now getting transfer speeds of about 75 MB/s on average, as I have faster internal storage drives than my dad's system. It is slow for anyone to try to connect to it now, but I intend to move it back and connect directly to the router after I am finished filling it up.

kanewolf suggested investigating the powerline, so that is why I went ahead and marked his answer as the solution (cause, well it was). Now my only regret is that I have the 8 TB model, so tempted to go buy a couple more WD Red drives to fill it up. This mini-server works amazing.
 
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