Question Realtek RLT8852BE WiFi 6 802.11ax PCIe Adapter 2.4ghz useless

the_groosalugg_

Honorable
Jan 8, 2019
14
0
10,510
Hello, I have my Inspiron since September 2023.
In Dec I switched from Vodafone Station to Fritzbox 6660.
The first thing I did is go to router settings and disable 2.4ghz. Then I was met with a world of problems as the router did not broadcast the SSID in its entirety. As new laptops have no ethernet port, and new routers for some reason have no hard reset button, I was completely without internet. ChatGPT then told me to create a mobile hotspot with my phone with an exact matching SSID and password as my home network then attempt to connect to the router settings page. I did and it worked. I re-enabled 2.4ghz.

Since then, my phone is always connected via 5ghz and always works with this router 100%.

However my Dell does not. It keeps switching to 2.4ghz for some reason, and when it does I do not even achieve 1% of my connection speed. On 5ghz I get 100mbps, as I should. On 2.4ghz I get around 0.3mbps. I cannot even load a webpage. It is extremely annoying. I went so far as to go to Device Manager, Network Adapter Settings and completely disable 2.4ghz in its entirety to force 5ghz connection. Unfortunately this did not fix the issue. So now, in times where my laptop would decide to switch to 2.4ghz, it instead disconnects from the network completely and the network cannot be discovered via the laptop. The neighbours' networks are visible, and I have no issues again with my phone, 5ghz, 100mbps.

I am running windows 11. Everything, all drivers, BIOS and Windows have just been updated to the very latest versions currently available.

I am pretty sure these issues did not even occur with the Vodafone Station, however when I had this, I would lose internet entirely (router internet light red or off, so router not connected to internet) very often, several times per month.

EDIT:

I have done more tests, the issues is withRealtek RLT8852BE WiFi 6 802.11ax PCIe Adapter. When connected with 5ghz, full speed. When connected with 2.4ghz, less than 1mbps. Doesn't matter which router or ISP, have tried others.

I have done as the gentleman below suggested and split my network into 2 separate networks and hope that this solves the issue. As simply disabling 2.4ghz (when the networks were combined) simply meant that my laptop would completely lose my network instead of switching to 2.4ghz and refused to locate it, where as my phone would locate it fine. I am hoping that with the network divide it won't disconnect but will have to wait and see. I have also disabled Roaming Aggressiveness.

Would love to know if other beholders of this network card also have this issue and what steps were taken to resolve it.
 
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kanewolf

Titan
Moderator
Hello, I have my Inspiron since September 2023.
In Dec I switched from Vodafone Station to Fritzbox 6660.
The first thing I did is go to router settings and disable 2.4ghz. Then I was met with a world of problems as the router did not broadcast the SSID in its entirety. As new laptops have no ethernet port, and new routers for some reason have no hard reset button, I was completely without internet. ChatGPT then told me to create a mobile hotspot with my phone with an exact matching SSID and password as my home network then attempt to connect to the router settings page. I did and it worked. I re-enabled 2.4ghz.

Since then, my phone is always connected via 5ghz and always works with this router 100%.

However my Dell does not. It keeps switching to 2.4ghz for some reason, and when it does I do not even achieve 1% of my connection speed. On 5ghz I get 100mbps, as I should. On 2.4ghz I get around 0.3mbps. I cannot even load a webpage. It is extremely annoying. I went so far as to go to Device Manager, Network Adapter Settings and completely disable 2.4ghz in its entirety to force 5ghz connection. Unfortunately this did not fix the issue. So now, in times where my laptop would decide to switch to 2.4ghz, it instead disconnects from the network completely and the network cannot be discovered via the laptop. The neighbours' networks are visible, and I have no issues again with my phone, 5ghz, 100mbps.

I am running windows 11. Everything, all drivers, BIOS and Windows have just been updated to the very latest versions currently available.

I am pretty sure these issues did not even occur with the Vodafone Station, however when I had this, I would lose internet entirely (router internet light red or off, so router not connected to internet) very often, several times per month.
The simplest thing to do is name the 5Ghz different than the 2.4Ghz. Then choose the 5Ghz on your devices.
 

the_groosalugg_

Honorable
Jan 8, 2019
14
0
10,510
The simplest thing to do is name the 5Ghz different than the 2.4Ghz. Then choose the 5Ghz on your devices.
Interesting, done.
Just to test it, my phone will discover both versions of the network. My laptop however cannot discover the 2.4ghz network. I kept the 5ghz the same, and I renamed the 2.4 version just by adding 2.4 after the name. Though I will need to keep using this laptop consistently for several days or more to see if it decides to randomly disconnect from this network as it does not know the 2,4 exists right now.
Thank you

Edit: my laptop has now discoverred the 2.4 network. I connected to it and did a speed test, 0.85mbps. I have no idea why the 2.4ghz connection on this brand new laptop is completely useless. I do no think my 5 year old budget Lenovo V330 ever did this in its entirely lifespan.

Further testing done. I turned off automatic channels on the 2.4 network and selected channel 1.
Connected to network with mobile phone, 100mbps. Connected to network with Dell, 0.04mbps.
The Dell is entirely to blame for the issues, not Vodafone or the Fritzbox.
 
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