Realtek 8832au Wireless Lan Wifi 6 Usb Nic
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Because I am a Chinese user, I wrote a post in Chinese to explain how to use these USB wireless dongles.
The url is -usb-rtl8832au-wifi6/1595.
Maybe you need to use Google Translate to help you to view.
I will arrange time to write an English document.
The rtl8852/32au chipset was the first AX class chipset that was available for use in USB WiFi adapters. Unfortunately, Realtek decided to support it with an out-of-kernel driver on Linux instead of doing the right thing and providing a mac80211 technology in-kernel driver. I tested the provided driver (v1.15.0.1). The results were terrible. As many of you know, I have a lot of USB WiFi adapters that I use and test. I cannot recall an experience as bad as this and I have been using USB WiFi adapters for many years. I experienced numerous system lockups that required me to pull the plug to get things going again. Additionally many features are simply not working. Power saving does not work. DFS channels do not work in AP mode. WPA3 did not work in any mode. I saw problems in basic client mode that I cannot explain. The driver is VERY BAD. Avoid adapters based on the 8852/32au chipset.
Recommendation: AVOID adapters based on this chipset. You will be disappointed. The driver is an out-of-kernel driver that is not consistent with Linux Wireless standards and it is a terrible driver. Recommend Linux uders seek out usb wifi adapters that use the mt7921au chipset if seeking an adapter that is WiFi 6 capable.
Over the night, ECR6600U disconnects from the WiFi. To reconnect, I have to do ifconfig down and ifconfig up. The router (Tenda AC15, FreshTomato 2022.7) sees the WiFi signal, but packets are not received by ECR6600U (I have a serial cable connected, tcpdump on VisionFive2 does not see ping packets sent from the router).
When I view the properties for the realtek rtl8821ce 802.11ac pcie adapter it shows the link speed to be 150 transmit and 150 receive. Are those different from the download/upload speeds? Will purchasing a 1200mps wireless adapter increase the link speed as well?
When I view the properties of my wireless realtek rtl8821ce 802.11ac pcie adapter, link speed is 150/150 receive/transmit. There was a time when I could change the link speed by selecting properties advanced. How can I change the link speed for this adapter card?
I called my ISP tech support. He assured me that the new speed was being provisioned. He rebooted the box to ensure provisioning. Speed tests before the upgrade to 1ghz was the same. Upload and download 110/120 mbps.
You can check the actual connection speed by going to the Windows control panel>Network and Internet>Network and Sharing Center. Click on the Wifi connection listed under the View your active networks section. Mine shows 433.3 MBPS.
Within the Windows "Device Manager", open the "Network" section, and double-click on the adapter, and switch to its "Properties" tab. Run through the options, to see if it has been configured to the 150 speed, instead of "automatic".
We found another older driver for realtek and I guess this driver produced for Asus laptops. Driver version is 2023.72.1215.2017. We are using this driver for two days. It seems working better but we are not sure that we will face another problem or not.
And we found another solution to change realtek wifi adaptor with Intel (which is using in Lenovo E490) then E480 is working with Meraki without problem. But it is expensive and time losing opration to change 220 laptop's wifi adaptor.
Last week Lenovo released new driver update for E480 and E580. We are starting to test this driver for several laptops. I will write my comments after our test. If you have same problem you can also try this update. Cisco also recommend us to try this version answering our ticket about this problem.
As the NICs are WiFi5 standard you can disable the WiFi6 features on the APs from the dashboard, that is pretty much the only thing you can do from the Meraki side for this issue. It is a simple change so might be worth it even if it is done temporarily while making other changes to the devices.
While we were doing test with Cisco Meraki engineers they offer us to disable wifi 6 and they created another SSID just for test and we did same test that you offered. First it seems it is working normally. But several hours later user informed that she has still same problem.
Thank You JimmyM. We have also addressed this problem changing E490 chip (Intel) with E480 chip (realtek) After this changing we haven't faced any problem neither E490 nor E480. It is very interesting. Because realtek worked better with E490.
We finished driver changing for realtek with older version which is 2023.72.1215.2017. Our E480's have been working with this driver for one week. It seems that this version works better than latest driver in Lenovo support page during Zoom meetings.
As I said before we found another solution about this problem. We used older driver for realtek and I guess this driver produced for Asus laptops in 2018 . Driver version is 2023.72.1215.2017. We are using this driver for two weeks. It seems that the problem has been solved with this driver. And we made some changes on windows registry to stop automatic update for this driver.
On the other side we upgraded the MR 46 AP's with firmware 28.5. We are even testing this firmware with official current Lenovo driver for realtek version 2024.0.8.122. Meraki 28.5 firmware seems better. But it is early to say it is solved completely.
Today We faced new problem with the Realtek driver 2023.72.1215.2017. Wi-fi adaptor suddenly stops the searching SSID and Laptops cannot see any SSID anywhere. we are disabling and enabling the network adaptor with admin account. I am pushing Meraki side to define this problem. Because it seems that it will not solve like this kind of temporary solution. If any of you knows facing problem with Lenovo Realtek wi-fi adaptor and MR46 then please write your problem here. I am communication with Meraki Helpdesk with the problem.
Its not just lenovo, its all 8822BE/CE drivers. We use HP and are experiencing the same with Meraki APs (not just MR46, multiple models). Driver rollback worked (2024.0.10.129 ver. on the 8822CE), but as you said we also are experiencing the WLAN autoconfig service crashing using the driver you mentioned. I'm going to try 2024.0.8.101 next to see if its old enough to eliminate the meraki bug, but new enough that it isn't crashing the WLAN autoconfig.
Reading this thread, I wish Realtek had solved this issue. I'm running a bunch of HP 250 G4's with the Realtek RTL8821CE cards and f/w load 2024.0.10.217. Connection drops after a few minutes. Tried regressing to earlier versions of their f/w but no go. My AP's are on MR 28.5. There is no single obvious cause. Windows diagnostics will blame everything it can, like can't find gateway, or there is a problem with the card (but does not always specify what the problem is). We a school and BYOD. The kids that have HP's are also dealing with this. Is this a protocol issue or something else. Getting desperate for a viable (not costly) fix.
I will have a look at that. I also have an open ticket that is exploring other options. A reboot of AP's in affected areas also relieves the issue. Not sure how long this action will hold. There is also some discussion about 802.11k. We shall see.
We are in the same exact boat. So far we have isolated the issue to the following Realtek WLAN Cards so far: RTL8822CE and RTL8822BE. Current workaround is to install the following older drivers and this works fine for connectivity but not sure if it has other side affects. If we install the latest driver from HP, Windows Update the problem comes back.
So far we have tested the following AX disabled, 12mbps bit rate set, radio power adjustments, channel adjustments etc, max performance settings for the WLAN adapter. We have not tried disabling 802.11k yet, but does not look like that works from other users feedback but we will try it anyway. We have an active support ticket with Meraki.
if we don't use the drivers noted above, what we notice in the Meraki logs in the request "client has left ap" messages every few seconds and also, not sure if this is related is that even though we are not using 802.1x, we are seeing 802.1x authentication related events on the WiFi 6 access points. When we have the problem the packet loss is about 8% to 12%. Intermittently as well the client would chose to connect to distant access points.
Does anybody have the luxury to test this if the same Realtek cards have the same issue on other (non-Meraki) enterprise level wireless networks or another wireless mesh type network - or is this problem specific to Realtek and a Meraki environment?
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