Slow LAN file sharing

Hello all..

I’m trying to copy files from my Desktop to my Notebook, both connected to the RouterBoard with a cable (i’m not using the Notebook’s WLAN)..
But the speed never exceeds 350KB/s (it jumps from 0 to 350KB/s), and when the process of copy starts, Internet is lost on both computers, and even the access to RouterOS from both (i get “Router has ben disconnected” on my PC)..
I have Internet in my phone..

When Windows says that the copy failed (error 0x8007003B), Internet and RouterOS access with WinBox are back..

I was using RouterOS v6.18, with a heavy Static DNS list (36000 entries), i thought that the list was the problem (CPU hog), but upgraded to v6.22 and reseted to default all settings, only configuring WLAN and PPPoE, and the problem persists..


I’m using:

  • RouterBoard 951G-2HnD with RouterOS v6.22, fw 3.18
  • Toshiba Satellite L845 with Windows 8.1 x64
  • Desktop with a Bigfoot Networks Killer e2100 with Windows 7 SP1 Professional x64

Thank you all!

Fixed.. It was a problem with the Notebook LAN adapter.. Disabled Large Send Offload V2 and that was all..