F5F Stay Refreshed Power Users Networks Problem with Realtek 8821AE WiFi card.

Problem with Realtek 8821AE WiFi card.

Problem with Realtek 8821AE WiFi card.

L
Lynton
Junior Member
Find
45
12-03-2016, 03:00 PM
#1
Hello everyone, let's start with a quick note: I'm someone who owns a laptop equipped with the Realtek 8821AE Wi-Fi chip, just like many of you. I've faced several problems—disconnections, slowdowns, and trouble reconnecting to networks even after manually selecting one. Windows 10 was updated with the latest drivers from the manufacturer, but nothing seemed to fix the issues. Even cleaning up or trying online solutions didn't help much, except for an old driver that might still cause problems. Recently, I came across a Linux forum mentioning similar PCI bus and timing issues.

I discovered a tool called MSI mode utility v3, which lets you switch between INT and MSI interrupt modes for devices on PCI lanes. By default, Wi-Fi chips use MSI mode (better), while some GPUs stick to INT mode (older, but more compatible). After using this tool, everything worked smoothly—no hangs, no 5Ghz problems, and I can switch networks without trouble. It was a simple registry tweak that should not break anything, though you should proceed with caution. Feel free to share your experiences in the comments!
Reply
Reply
L
Lynton
12-03-2016, 03:00 PM #1

Hello everyone, let's start with a quick note: I'm someone who owns a laptop equipped with the Realtek 8821AE Wi-Fi chip, just like many of you. I've faced several problems—disconnections, slowdowns, and trouble reconnecting to networks even after manually selecting one. Windows 10 was updated with the latest drivers from the manufacturer, but nothing seemed to fix the issues. Even cleaning up or trying online solutions didn't help much, except for an old driver that might still cause problems. Recently, I came across a Linux forum mentioning similar PCI bus and timing issues.

I discovered a tool called MSI mode utility v3, which lets you switch between INT and MSI interrupt modes for devices on PCI lanes. By default, Wi-Fi chips use MSI mode (better), while some GPUs stick to INT mode (older, but more compatible). After using this tool, everything worked smoothly—no hangs, no 5Ghz problems, and I can switch networks without trouble. It was a simple registry tweak that should not break anything, though you should proceed with caution. Feel free to share your experiences in the comments!

Reply
Reply