Unable to get USRP X410 (CG_400 FPGA image) QSFP28 port connected with Intel E810 2CQDA2 NIC, and both link LEDs on NIC and USRP don't blink. I burned the FPGA into CG_400, and then connected the QSFP28-0 of USRP X410 to the host (E810) with QSFP28 cable. But after inserting the network cable, the network card indicators of the host and X410 are not on. It seems that the connection failed. Setup Details Host: Windows Server 2019 MPMD: 4.2 FPGA: CG_400 Network interface card: E810,latest NIC driver, latest NVM firmware(4.0) Steps to reproduce the problem The connection method is shown in the following figures: Actual Behavior When I burn CG_400 to X410, USRP x410 and E810 are not connected. The connection is as shown in the figure below: Additional Information I made some verification about this issue: 1.    When I connect the two ports of E810 with QSFP28 cable, it is displayed as 100Gbps on windows. 发自我的企业微信

Hi, The required and tested cards are provided below (referring to https://kb.ettus.com/X410#100_Gigabit_Ethernet). ## 100 Gigabit Ethernet * Requires UHD 4.2 or later: <https://github.com/EttusResearch/uhd/releases/tag/v4.2.0.0> * 100GbE Streaming only supports Linux Hosts **Recommended 100 Gigabit Ethernet Bundles** * Dual 100 Gigabit Ethernet PCIe Interface Kit, NIC and Cable * [ni.com part number 788216-01](https://search.ni.com/nisearch/app/main/p/bot/no/ap/global/lang/en/pg/1/q/788216-01/) **Recommended 100 Gigabit Ethernet Cards** * Mellanox/NVIDIA ConnectX-5 EX 100 GbE NIC (MCX516A-CCAT (PCIe Gen3 x16)) * [NVIDIA® MCX516A-CCAT ConnectX-5 EN Adapter Card 100GbE PCIe Gen 3x16](https://store.nvidia.com/en-us/networking/store/product/MCX516A-CCAT/nvidiamcx516a-ccatconnectx-5enadaptercard100gbe/) * Mellanox/NVIDIA ConnectX-5 EX 100 GbE NIC (MCX516A-CDAT (PCIe Gen4 x16)) * [NVIDIA® MCX516A-CCAT ConnectX-5 EN Adapter Card 100GbE PCIe Gen 4x16](https://store.nvidia.com/en-us/networking/store/product/MCX516A-CDAT/nvidiamcx516a-cdatconnectx-5exenadaptercard100gbe/) **Recommended 100 Gigabit Ethernet Cables** * Mellanox/NVIDIA 3m QSFP28 MCP1600-C003E26N * [NVIDIA® MCP1600-C003E26N DAC Cable Ethernet 100GbE QSFP28 3m](https://store.nvidia.com/en-us/networking/store/product/MCP1600-C003E26N/nvidiamcp1600-c003e26ndaccableethernet100gbeqsfp283m/) * Shorter length variants are also recommended please check also the operation modes and supported tool flows below:  Another suggestion is to check the IP addresses provided in the above link. Please let me know in case of further questions.