Motherboard does not detect audio output device or LAN port
###Troubleshooting Help:
[PCPartPicker Part List](https://pcpartpicker.com/list/X8C9rr)
Type|Item|Price :----|:----|:---- **CPU** | [AMD Ryzen 5 3600X 3.8 GHz 6-Core Processor](https://pcpartpicker.com/product/3WYLrH/amd-ryzen-5-3600x-38-thz-6-core-processor-100-100000022box) | $239.99 @ Amazon **Motherboard** | [\*ASRock B550 Phantom Gaming 4 ATX AM4 Motherboard](https://pcpartpicker.com/product/4mjNnQ/asrock-b550-phantom-gaming-4-atx-am4-motherboard-b550-phantom-gaming-4) | $114.99 @ B&H **Memory** | [\*Crucial Ballistix 16 GB (2 x 8 GB) DDR4-3600 CL16 Memory](https://pcpartpicker.com/product/2TFKHx/crucial-ballistix-16-gb-2-x-8-gb-ddr4-3600-memory-bl2k8g36c16u4b) | $74.94 @ Newegg **Storage** | [\*Team MP33 1 TB M.2-2280 NVME Solid State Drive](https://pcpartpicker.com/product/64MTwP/team-mp33-1-tb-m2-2280-nvme-solid-state-drive-tm8fp6001t0c101) | $89.99 @ Newegg **Video Card** | [Zotac GeForce RTX 2070 8 GB GAMING OC MINI Video Card](https://pcpartpicker.com/product/CgYLrH/zotac-geforce-rtx-2070-8-gb-gaming-oc-mini-video-card-zt-t20700f-10p) |- **Case** | [Cooler Master MasterBox TD500 Mesh w/ Controller ATX Mid Tower Case](https://pcpartpicker.com/product/pvdrxr/cooler-master-masterbox-td500-mesh-w-controller-atx-mid-tower-case-mcb-d500d-kgnn-s01) | $99.99 @ Amazon **Power Supply** | [\*EVGA 650 W 80+ Gold Certified Semi-modular ATX Power Supply](https://pcpartpicker.com/product/kz7CmG/evga-power-supply-210gq0650) | $107.22 @ Amazon **Operating System** | [Microsoft Windows 10 Home OEM 64-bit](https://pcpartpicker.com/product/wtgPxr/microsoft-os-kw900140) | $108.78 @ Other World Computing **Wireless Network Adapter** | [Asus PCE-AC56 PCIe x1 802.11a/b/g/n/ac Wi-Fi Adapter](https://pcpartpicker.com/product/bQ8Zxr/asus-wireless-network-card-pceac56) | $60.90 @ Amazon **Wireless Network Adapter** | [Netgear A6210-100PAS USB 3.0 802.11a/b/g/n/ac Wi-Fi Adapter](https://pcpartpicker.com/product/tj2rxr/netgear-wireless-network-card-a6210100pas) | $48.99 @ Newegg | *Prices include shipping, taxes, rebates, and discounts* | | **Total** | **$945.79** | \*Lowest price parts chosen from parametric criteria | | Generated by [PCPartPicker](https://pcpartpicker.com) 2020-11-10 12:39 EST-0500 |
Second Motherboard: [MSI B550-A PRO ATX AM4 Motherboard](https://pcpartpicker.com/product/7gxbt6/msi-b550-a-pro-atx-am4-motherboard-b550-a-pro)
**Describe your problem. List any error messages and symptoms. Be descriptive.**
**[Original Post](https://www.reddit.com/r/buildapc/comments/jrqpr0/brand_new_motherboard_not_detecting_ethernet_port/)**
I'm still running into the same issues so I'm hoping for help with this post. I have linked my original post at the top if you want to read through that for a detailed look at what I tried that first week.
**Summary:** My motherboard does not detect an audio output device nor does it detect any device that would allow it to connect to the internet. PCIe network adapters are not detected. USB network adapters are not detected. Ethernet cables are not detected. All 3 devices are detected by the motherboard as I get the LED on the PCIe card lit and the two lights on the ethernet port are lit when it is plugged in and indicates data transfer is occurring and both the PCIe card and USB adapter can be found under "Other Devices" (with the yellow ? triangle), but not under network adapters.
Since the motherboard does not detect the devices in their appropriate category I cannot update their drivers. When I tried to do it manually through the Device Manager it just tells me the installer can't install the drivers. All the available USB ports and PCIe slots were tried and they did not work with the network adapters while all my other USB devices and my GPU work with the other USB ports and PCIe slot, respectively. The USB network adapter works immediately when I plug it in to my laptop. Using the CD that came with the motherboard does not help either.
***Updated Efforts since OP:*** I contacted ASRock's support line and told me to flash the newest BIOS and if that didn't work it sounded like a hardware issue and to try and get an exchange from the retailer. I flashed the BIOS using the linked the support person provided, but that didn't work either. Since I wasn't making any progress with the motherboard I decided to return the first one I bought hoping it was just a lemon. I went to MicroCenter and bought a new motherboard of the exact same type as the first (ASRock B550 Phantom). Carefully disassembled and reassembled my PC and still ran into the same issues. I bought a second motherboard (MSI B550-A Pro) to see if it was just a compatibility issue or something. Still have the same problems with the second motherboard. Updated the BIOS to the newest version and still nothing.
At this point it must be a problem on the human side of things right? I really have no idea what it could be at this point. I am 99% sure everything is plugged in appropriately, but I'm certainly planning on checking a few more times after work today. Any advice would be greatly appreciated!