I have just followed those steps and I'm still getting same code 31 on all network drivers. I'm running Windows 7SP1. It seems that cannot load drivers, so I have downloaded them from official site of DELL.
Opening Device Manager, the "Hyper-V Virtual Ethernet Adapter" is shown under the Network Adapter section with a yellow triangle, and the following message: This device is not working properly because Windows cannot load the drivers required for this device. (Code 31) An object ID was not found in the file. Solved: Wireless connection problem (error code 31) - HP I just received an hp envy 14 t-1000cto that i bought refurbished. I came with windows 7 64bit. After booting up I tried to connect to my wireless network, but could not do so because the wireless device was turned off. I could not turn the device on with Wireless Assistant so I took a look and d Solved: Vostro 460 Network card not found Code 31 need to Re: Vostro 460 Network card not found Code 31 need to reboot 3 to 4 times Jump to solution The file version you are suggesting is from 2008, the most current version from Broadcom site is 14.8.2.0, from 7/12/2011, which still exhibits the same behavior. Lost internet connection Code 31 on network adapter
Deleted registry entry to fix code 31, network adapters
wireless adapter driver error code(45) - HP Support 2. Double-click the Network adapters category. 3. Right-click the name of the Network Adapter and select Uninstall. 4. On the "Confirm Device Uninstall" window, click OK. 5. When the network adapter software has been uninstalled, restart the computer. The computer will reinstall the device driver software. 6. CODE 31 (WLAN is ON & OFF) Network Adapter
Deleted registry entry to fix code 31, network adapters
Before you take this last resort, you need at first check the hardware condition and make sure it is not the network device that causes code 31 device manager issue on Windows 10.