07-24-2016 01:46 PM
My H50-55 has been working fine over the last 6 months and even survived the upgrade to Windows 10 - or so I thought.
Logged on todayand both of the Realtek wireless devices have been disabled with the ollowing comments:
"Windows has stopped this device because it has reported problems. (Code 43)"
This is affecting:
Realtek 8821AE Wireless Lan 802.11ac PCI-E NIC
Realtek Bluetooth 4.0 Adapter
I have already tried the rollback to Win 8.1 but it didn't help. I also re-installed and ran teh Lenovo diagnostics facility and that found nothing wrong at all !
I've seen a few comments about WiFi and Bluetooth cards - anybody had & solved this one ?
07-24-2016 11:57 PM
Windows is getting an error back from the Realtek 8821AE Wireless Lan 802.11ac PCI-E NIC device, which is a combo card attached to the mother board, and held in by two screws (see page 50 of the Lenovo H50 SeriesHardware Maintenance Manual), which could be due to a damaged driver, or a hardware failure. .
It most is due to a corrupted driver, so the first thing I would do is download the latest Realtek Wireless LAN Driver for Windows 10 (64-bit & 32-bit) driver u4wlg04us17.exe from Lenovo (if you are back on Windows 10 again), and save it where you can find it. If you can connect to the Internet with a LAN cable, then do so as it will make things easier, but if not, you will have to copy over the driver on a USB stick etc.
I do not see a direct download for a Windows 8.1 driver on Lenovo's H50-55 driver download page, but I do see one here that says it is for the 8821AE on the page, but in the readme it appears to be for a Realtek RTL8192C. Not sure which one is correct, but you might pull it down anyway since it will just error out and not install if the wrong driver. Otherwise you may have to get a 8.1 driver via Windows Update via a wired LAN connection. Try to stay away from those automatic driver update tools advertised online...get them either from the Microsoft via Windows Update, or Lenovo.
The next step is to open Device Manager
If the clean install of the driver fails to fix the problem, you might try just removing the NIC card and then resetting in on the motherboard just to see if it is a connection issue, but most likely is just the driver.