Slow NAS (Synology) Transfer Rate

Posted on 2009-04-19
Medium Priority
Last Modified: 2013-11-14

Router: Linksys RV042 (Firmware Version:
NAS: Synology DS207+ (Firmware DSM 2.1-0839)

Having owned a few Synology NAS, this particular transfer rate is extremely slow. When I try to open even a 100kb word document, it pauses for 30 seconds before opening, when I open a 2mb photoshop file, it takes over minutes. There're only around 5-7 users connected at any point with very low usage.

Can anyone advise how can I trace the performance issue of the NAS?  Is it possible that having VPN turned on (IP becomes 10.116.171.X) on the Router affects the network performance?

Question by:dennisdominic
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LVL 37

Expert Comment

ID: 24186575
are all NAS devices sitting on the same internal subnet behind the router?

when you talk about accessing the NAS, is it internal access or that through VPN?

Author Comment

ID: 24190201
All sitting on the same internal subnet.
Accessed on local LAN.
The PCs and NAS are connected to the same Router  (Linksys RV042).
When I transfer a 100mb file,
PC to PC transfer at around 4mb/sec.
PC to NAS (or NAS to PC) transfer at around 700kb/sec.
LVL 37

Expert Comment

ID: 24190367
> this particular transfer rate is extremely slow
> PC to NAS (or NAS to PC) transfer at around 700kb/sec.

PC to the specific NAS? or any NAS?

Expert Comment

ID: 24210580
I would start to check if the NAS filesystem is healthy.
Improper shutdown might damage the filesystem.


Accepted Solution

dennisdominic earned 0 total points
ID: 24392049
I found out the reason is that Linksys RV042's Ports needs to be on Auto Negotiation mode and not 100M Full Duplex.

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