Copying files to the external hard disk of the Linksys EA6700 WLAN router via LAN is about 3 MB/s, but copying it back via LAN is only 250 kb/s. One file, file size ~ 10 MB. It doesn't matter which of the two PCs I use. I tried all combinations of copying files to and from the hard disk.
Any idea why reading is so slow? Usually I would expect reading is faster than writing.
Hardware: Linksys EA6700, Firmware 188.8.131.52731 USB Port: USB3 Hard Disk: Toshiba v63700-C 1 TB (attached to Linksys WLAN router) Network connection: via 1 GB/s Netgear switch (no WLAN used). OS: Windows 7 SP1 x64 Protocol: SMB IP assignment: done by Linksys EA6700
Copying the same file onto a NAS which is attached to the same Netgear switch is fast in both, reading and writing, so I don't expect it to be a problem of the two PCs.
It is possible that some laptops are connected to the Linksys router which do some Internet traffic. Internet connection is 2 MBit/s (128 kbit/s upload). But I think and hope that this is not relevant in this case.
Connecting the disk locally to a USB2 port reads the file at 25 MB/s, so it's not a hard disk issue.
In Resource Monitor I can see that
System has a connection to the Linksys router at the mentioned speed. When I cancel the copy process, data transfer drops to zero.