[Solved] Extremely Slow Network Performance

[Calco]

Hey, first time poster so please be gentle with me.

I use a HP Microserver Gen 8 as my Unraid box. All of my networking is at least Gigabit. But when i try copying files i only get speeds at around 7 MB/s so not even Fast Ethernet speeds.

I tried transplanting the drives in a different server but still had the same Issues. I tried it with cached shares and with normal shares. I tried swapping all cables, switches and even directly connecting my PC to the Unraid server. The server and the PC are connected with gigabit according to my router. I ran a iperf3 test with every config i made and always got the same results, so i am pretty sure its not the network:

 

[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  7.50 MBytes  62.6 Mbits/sec
[  4]   1.00-2.01   sec  7.62 MBytes  63.8 Mbits/sec
[  4]   2.01-3.00   sec  7.38 MBytes  62.1 Mbits/sec
[  4]   3.00-4.01   sec  7.50 MBytes  62.7 Mbits/sec
[  4]   4.01-5.01   sec  7.50 MBytes  62.7 Mbits/sec
[  4]   5.01-6.00   sec  7.50 MBytes  63.3 Mbits/sec
[  4]   6.00-7.00   sec  7.50 MBytes  63.0 Mbits/sec
[  4]   7.00-8.00   sec  7.50 MBytes  63.0 Mbits/sec
[  4]   8.00-9.00   sec  7.38 MBytes  62.0 Mbits/sec
[  4]   9.00-10.01  sec  7.62 MBytes  63.4 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.01  sec  75.0 MBytes  62.9 Mbits/sec                  sender
[  4]   0.00-10.01  sec  74.8 MBytes  62.7 Mbits/sec                  receiver

 

I also attached the diagnostic files from my server. I hope someone can help me figure out if it is a configuration Issue.

galaxis-diagnostics-20210518-1810.zip

Edited May 18, 2021 by Calco

[JorgeB]

10 minutes ago, Calco said:

I ran a iperf3 test with every config i made and always got the same results, so i am pretty sure its not the network:

You mean it's the network?

 

Iperf only tests the network, and the slow results confirm it's a network problem.

 

This is also not normal, eth0 reports unknown speed and duplex mode:

 

    Speed: Unknown!
    Duplex: Unknown! (255)

 

[Calco]

9 minutes ago, JorgeB said:

You mean it's the network?

When i connect a Windows system in the same way as my Unraid Box i get the full Line Speed of 1Gbit/s so I'm pretty sure it's not a Network Problem.

does it mean it could be a Problem with the port?

 

10 minutes ago, JorgeB said:

This is also not normal, eth0 reports unknown speed and duplex mode:

 

    Speed: Unknown!
    Duplex: Unknown! (255)

 

eth0 is reporting nothing because it isn't plugged in. I tried using the other ethernet port but that didn't help either...

 

I thougt it might be a problem within Unraid which would explain the iperf3 result.

[JorgeB]

It could be a problem with that NIC and Linux, iperf only tests the LAN, if iperf is slow any transfer will also be slow.

[Calco]

Ok i narrowed it down to a problem with the NIC on my PC. Thanks for your help

 

[Frank1940]

4 hours ago, Calco said:

Ok i narrowed it down to a problem with the NIC on my PC. Thanks for your help

 

Check for a driver update...

[Calco]

6 hours ago, Frank1940 said:

Check for a driver update...

Already did that but i didn't restart my PC after the update and because of Windows not completely shutting down on Shutdown it didn't install properly. So always restart after Updating something and don't shut it down normaly...

 

Thanks for your help

It's working now