[Resolved] Slow LAN between HAP AC2 and PC with Intel NIC

Hello

I have an issue with one direction only when trying to download from NAS to PC. No issues with upload to NAS.
An issue is only with 1Gbit mode between PC with Intel NIC and hAP AC2.
Intel I218-V is used in PC.

Speeds:

  • upload from PC => Router => NAS - 600 Mbps (HDD in NAS is not fast)
  • download from NAS => Router => PC - less than 30 Mbps
    There are no issues when I download/upload from Internet(100/100 is my Internet channel)

I have no issues when laptop with Realtec NIC is connected to the router using the same cable(CAT5e sFTP 24AWG). With another cable an issue still persist.
I see no errors in interface.

Port status:

[mtadmin@MikroTik] > /interface ethernet monitor ether2 once
                        ;;; PC
                      name: ether2
                    status: link-ok
          auto-negotiation: done
                      rate: 1Gbps
               full-duplex: yes
           tx-flow-control: no
           rx-flow-control: no
               advertising: 100M-half,100M-full,1000M-half,1000M-full
  link-partner-advertising: 10M-half,10M-full,100M-half,100M-full,1000M-full

Sorry. An issue was with my NIC’s driver on Windows 7 x64.
After driver update everything is fast:
https://downloadcenter.intel.com/download/18713?product=71305
maybe it will be useful for somebody.
Good device:)