Intel Motherboards - J3455-ITX Ethernet transfer slow in Windows 10

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J3455-ITX Ethernet transfer slow in Windows 10

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=6430
Printed Date: 29 Jul 2025 at 10:47pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: J3455-ITX Ethernet transfer slow in Windows 10

Posted By: richiewu
Subject: J3455-ITX Ethernet transfer slow in Windows 10
Date Posted: 27 Oct 2017 at 8:55am

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I installed Windows 10 15063.674 and updated the latest rlt8111gr drivers,

I use iperf tested and both of them are ver 2.0.x

Server side 192.168.1.2: iperf -s

Client side is ASUS RT-AC68U router: iperf -c 192.168.1.2

I got transfer 434 MBytes, and Bandwidth 364 Mbps

Also I used copy file to test from Windows, transfer speed can up to 30M/s, but it's too slow, right?

My J3455 works well in Synology DSM system, and Ethernet transfer about 100M/s, BIOS version is P1.40

Can some one help me?