No Ethernet Connection after Connect with GS105 Switch

Hi all,

I have some questions about our new bought GS105 switch. It is said that this model is a unmanaged switch so that I can plug into cables and make them communicate. However, when I connect my laptop to switch, there shows an Ethernet connection but when I click this connection, I can't connect it. Why does this happens? Is it my laptop OS problem or hardware problem or the switch problem? Thanks for helping me:smileyhappy:

My goal:

I want to connect my laptop to two USRP to make them communicate. However, the USRP can only support GB Ethernet and my laptop only have 10/100 Ethernet. In order to make them communicate, we bought this GS105 switch and connected both USRP and laptop to switch (This method according to https://forums.ni.com/t5/USRP-Software-Radio/usrp-2920-can-t-connect-to-PC-WindosXP/td-p/1920379 ). If it successfully connect each other, I can run the command "uhd_find_devices" in Terminal and see the device information. However, I can't find any UHD device which means it has connection problem.

Methods I tried:

• Connected all the Ethernet cables and power cables for several times -- didn't work
• Checked LED lights of switch -- correct (both lights on for USRP cable and left light on for my laptop)
• Clicked on the icon of "Wired connection" in my laptop, all lights blink; however, after a while my laptop showed "disconnected"
• Tried another ASUS RT-N16 -- worked

System info:

• OS: Ubuntu 16.04
• Laptop Ethernet Controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
• USRP Ethernet ports: Gb Ethernet