Help with transfer speed suddenly decreasing marginally


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For the past few days, the transfer speed on my unRaid server suddenly went from 30-40 mb/sec to between 500kb to 2 mb/sec. I started seeing the change as soon as I purchased the plus license key and installed a cache drive. I tried playing with the settings on my linksys e4200, and unmounting the cache drive, but the speed remained the same. I also tried connecting my old NAS with the same cable and port, and did not experience the same problem I have with unRaid. Can someone take a look at my syslog and see what's going on? Thanks.

 

Here's my eth0 log

 

Tower login: root

Linux 3.9.6p-unRAID.

root@Tower:~# ethtool eth0

Settings for eth0:

        Supported ports: [ TP ]

        Supported link modes:  10baseT/Half 10baseT/Full

                                100baseT/Half 100baseT/Full

                                1000baseT/Full

        Supports auto-negotiation: Yes

        Advertised link modes:  10baseT/Half 10baseT/Full

                                100baseT/Half 100baseT/Full

                                1000baseT/Full

        Advertised pause frame use: Symmetric Receive-only

        Advertised auto-negotiation: Yes

        Speed: 1000Mb/s

        Duplex: Full

        Port: Twisted Pair

        PHYAD: 0

        Transceiver: internal

        Auto-negotiation: on

        MDI-X: Unknown

        Supports Wake-on: pumbg

        Wake-on: g

        Current message level: 0x00000033 (51)

        Link detected: yes

root@Tower:~#

syslog.txt

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Tower login: root

Linux 3.9.6p-unRAID.

root@Tower:~# ifconfig

eth0      Link encap:Ethernet  HWaddr

          inet addr:192.168.1.115  Bcast:192.168.1.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:297 errors:0 dropped:0 overruns:0 frame:0

          TX packets:340 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:31382 (30.6 KiB)  TX bytes:146828 (143.3 KiB)

          Interrupt:40 Base address:0x8000

 

lo        Link encap:Local Loopback

          inet addr:127.0.0.1  Mask:255.0.0.0

          UP LOOPBACK RUNNING  MTU:65536  Metric:1

          RX packets:8 errors:0 dropped:0 overruns:0 frame:0

          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:560 (560.0 B)  TX bytes:560 (560.0 B)

 

root@Tower:~#

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new ifconfig and syslog

 

Tower login: root

Linux 3.9.6p-unRAID.

root@Tower:~# cp /var/log/syslog /boot

root@Tower:~# ifconfig

eth0      Link encap:Ethernet  HWaddr

          inet addr:192.168.1.115  Bcast:192.168.1.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:16250 errors:0 dropped:0 overruns:0 frame:0

          TX packets:11663 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:23950671 (22.8 MiB)  TX bytes:1018148 (994.2 KiB)

          Interrupt:40 Base address:0x8000

 

lo        Link encap:Local Loopback

          inet addr:127.0.0.1  Mask:255.0.0.0

          UP LOOPBACK RUNNING  MTU:65536  Metric:1

          RX packets:8 errors:0 dropped:0 overruns:0 frame:0

          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:560 (560.0 B)  TX bytes:560 (560.0 B)

 

root@Tower:~#

 

 

Tower login: root

Linux 3.9.6p-unRAID.

root@Tower:~# cp /var/log/syslog /boot

root@Tower:~# ifconfig

eth0      Link encap:Ethernet  HWaddr

          inet addr:192.168.1.115  Bcast:192.168.1.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:16250 errors:0 dropped:0 overruns:0 frame:0

          TX packets:11663 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:23950671 (22.8 MiB)  TX bytes:1018148 (994.2 KiB)

          Interrupt:40 Base address:0x8000

 

lo        Link encap:Local Loopback

          inet addr:127.0.0.1  Mask:255.0.0.0

          UP LOOPBACK RUNNING  MTU:65536  Metric:1

          RX packets:8 errors:0 dropped:0 overruns:0 frame:0

          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:560 (560.0 B)  TX bytes:560 (560.0 B)

 

root@Tower:~#

syslog.txt

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I was trying to transfer one big file during that period of time, but it was so slow that I cancelled it. I have been playing around with some settings on my pc end, and it seems that the problem only affects the speed copying from my pc to the unraid, copying from unraid to desktop was unaffected.  For some reason, I could no longer map the unraid folder, and the only way to access it was from workgroup. I also tried teracopy, but for some reason, the speed was even slower than copying from windows explorer. I have attached a longer syslog of a transfer of a folder of multiple files (32.9 GB, 178 files, took around 3 hours) here if you could take a look for me, thanks.

syslog.txt

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