PC to PC private network/homegroup file transfer SLOW. . . . .

[Dale_I]

I am experiencing excruciatingly SLOW file transfer speeds after upgrading to Windows 10 across 3 computers. I was trying to pull in my music off the desktop to either laptop and the file speeds are in the 25 kb range (yes kb... not mb or gb). Same thing Win7 was 20 to 30 mb. I didn't expect a 90% slow down.

Recently purchased a desktop (i7-4900k, 24gb ram, 1T SSD) that came with Windows 10 Pro. I also have a Dell Laptop (E6530 model, I7-3720QM, 8 gb ram, 256 SSD) that I recently upgraded to Windows 10 Pro. Third pc, A Samsung Laptop (NP700Z3CH, i5-3210m, 6gb ram, 750 gb HDD) and just upgraded it to Windows 10 Home Premium.

I am connected through a router with Ethernet on the Desktop and either wireless or ethernet (tried both) on the laptops. Connection with the internet is surprisingly fast (cable) and I swear I could email myself the files and do this faster.

My work around is to use thumb drives, but I would like to find out what I have set incorrectly. I should be able to transfer files across a local network much faster than this.

After experiencing the slowness using the local network, I originated a homegroup thinking that there may be some security settings that allow identified computers in the same network to have some speed privileges... but nothing I've tried has made a difference .

I did get into driver management and updated the Ethernet drivers in all of them. I'm currently transferring about 1mb through a USB 3.0 port to a thumb drive. I would think 2 computers connected hard wire Ethernet would be at least that, but I only get 25% of that.

Can anyone tell me where I blew it?

 

[Tcinator]

Here is a tool to test transfer speeds: http://www.totusoft.com/files/LAN_SpeedTest.exe
You can use it to verify r/w speeds between the 3 computers, you can choose the file size, try something larger than one song, like 20MB.

As to why this could be happening, I know there have been issues with windows 10 networking, WiFi mainly, but driver updates may have solved this. slow speeds like this usually happen when there is interference or a network device is having issues. one thing to check is the IP address of every device on the network, if there is a duplicate IP on 2 devices, not necessarily just computers, you can get a similar issue, try restarting the router and making sure all 3 computers are on dhcp. I will keep thinking but try out that tool from any combination pc 1 to lap 1, pc 1 to lap 2, lap 1 to lap 2, lap 1 to pc 1, lap 2 to pc 2. just to see if any direction works.

 

[Dale_I]

Here is a tool to test transfer speeds: http://www.totusoft.com/files/LAN_SpeedTest.exe
You can use it to verify r/w speeds between the 3 computers, you can choose the file size, try something larger than one song, like 20MB.

As to why this could be happening, I know there have been issues with windows 10 networking, WiFi mainly, but driver updates may have solved this. slow speeds like this usually happen when there is interference or a network device is having issues. one thing to check is the IP address of every device on the network, if there is a duplicate IP on 2 devices, not necessarily just computers, you can get a similar issue, try restarting the router and making sure all 3 computers are on dhcp. I will keep thinking but try out that tool from any combination pc 1 to lap 1, pc 1 to lap 2, lap 1 to lap 2, lap 1 to pc 1, lap 2 to pc 2. just to see if any direction works.

I appreciate your help. I had some time today to start some further diagnoses, but found an updated BIOS I need to get from Samsung for the NP700Z3C laptop. It is a known wireless issue with a known solution. Once that is installed I'll perform some tests and get back to you with the results.

One thing I did was to disable the NetBIOS over TCP/IP in the hopes that it may speed up. I wasn't hopeful and it didn't do anything. But, I thought it was worth a try with little to no down side. I'm leaving it disabled unless there is a reason to re-enable it again.

I'll come back once I get the BIOS updated on the laptop and have some data to report.

Thanks again for taking the time to help.

 

[Dale_I]

Thanks for looking at this...

So, I found a connectivity issue Sumsung NP700Z3C Laptop and through exhaustive research it turns out that the Intel Dual Band N 6235 needs to have the N-mode disabled and then it works flawlessly. I'll gladly give up a little band width I'm not using to get a solid wireless connection.

I ran the LAN Speed Test, but did not do a before/after on the Samsung Laptop to see if disabling the N-mode affected the transfer rates or not. The listed result is after the N-mode disable fix.

ShopDesktop (I should note I’m running Windows 10)

Version 1.3.2
OS Version: Windows 8
Processor: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
Date: 12/08/2015
Time: 10:15:34
Program Parameters: 0
High Performance Timer: 0.0000002555

Test File: C:\Users\Shop Desktop\Desktop\Test Folder 25.5\RushTest\NW_SpeedTest.dat
Write Time = 0.0130325 Seconds
Write Speed = 15,346.2262240 Mbps
Read Time = 0.0491304 Seconds
Read Speed = 4,070.8012000 Mbps

Screenshot


Dell Laptop (I should note I’m running Windows 10)

Version 1.3.2
OS Version: Windows 8
Processor: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
Date: 12/08/2015
Time: 13:21:36
Program Parameters: 0
High Performance Timer: 0.0000003951

Test File: C:\Users\Isley Dell\Desktop\Test Folder 25.5\NW_SpeedTest.dat
Write Time = 0.0163609 Seconds
Write Speed = 12,244.2567680 Mbps
Read Time = 0.0483735 Seconds
Read Speed = 4,134.4959440 Mbps

Screenshot


Samsung Laptop (I should note I’m running Windows 10)

Version 1.3.2
OS Version: Windows 8
Processor: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
Date: 12/08/2015
Time: 16:34:59
Program Parameters: 0
High Performance Timer: 0.0000004105

Test File: C:\Users\Shop Desktop\Desktop\Test Folder 25.5\NW_SpeedTest.dat
Write Time = 0.0235258 Seconds
Write Speed = 8,501.3192320 Mbps
Read Time = 0.2722750 Seconds
Read Speed = 734.5515120 Mbps

Screenshot


When you mentioned to run a test from and to each PC, I did not find where to designate an alternate location. Once the LAN Speed Test opened, it gave a network address that was different to each computer I ran the test on. However, I couldn't seem to find how to change locations of where I was writing or reading the folder (BTW - I used a 25.5MB folder). Trying to use the drop down menu that contained the network address didn't give me any additional options other than the address supplied.

Thanks for whatever insight you can provide.

If needed, I could do an A/B LAN Speed Test on the Samsung Laptop, one with the wireless connected and another with an Ethernet connection to see if disabling the N-mode has an affect on file transfer speeds. I would imagine it would, and looking at the numbers the Samsung appears much slower than the ethernet desk top or the wireless Dell Laptop.

 

[mjslakeridge]

Your transfer speeds look decent. I just ran a comparable test size between 2 computers on my LAN (ethernet connection) and got about 1/3rd to 1/2 of your write speed but about 1/10th read speed than you did, at least on your first 2 tests.

On your 3rd test our results are similar, except your read speed is still almost double mine.

Version 1.3.2
OS Version: Windows 8
Processor: AMD FX(tm)-6300 Six-Core Processor
Date: 12/09/2015
Time: 13:25:38
Program Parameters: 0
High Performance Timer: 0.0000000698
Test File: \NW_SpeedTest.dat
Write Time = 0.0287384 Seconds
Write Speed = 5,567.4716560 Mbps
Read Time = 0.3400663 Seconds
Read Speed = 470.4965360 Mbps