Wifi not detected for some devices

Submitted by Astro on #1

Hello everyone,

I have the problem that some devices cannot detect the wifi created by my server.

Server: 

Raspberry Pi 5 (2GB) running the pre-made cloudhub image (v4.7.8) from an SD card.

Clients:

  • A) Laptop Lenovo ThinkPad E15 with Win11 (Intel AX201) --> works
  • B) Smartphone Pixel 6 --> works
  • C) PC with Win11 and USB-Wifi stick (Realtek RTL8188EU) --> no connection / does not detect wifi network
  • D) PC with Win11 and Wifi-PCIe-card (TP-Link TL-WN781ND) --> no connection / does not detect wifi network
  • E) Custom device with an old wifi module, acting as access point --> no connection

When running the Pi as access point, then A and B can detect the default cloudhub network and connect to it. But C and D do not even detect the network, so I cannot establish the connection. (As E also is an AP, they obviously don't work together.)

When instead creating mobile hotspots with A,C and D (not tested on B) and setting up the server to automatically connect to the hotspot (one at a time), the connection works with A but not C and D. And from what I can tell, E does also not work ( when Pi and C were connected to E, the virtualhere client on C was not able to find the Pi).

I am not sure if it is relevant, but the Pi as well as A and B are wifi-ac capable devices, while C and D are wifi-n and E is wifi-b/g.  But shouldn't wifi-ac be backwards compatible?

Does someone have an idea what could be wrong here?

Best regards
Adrian

Submitted by Michael on Thu, 2025/05/15 - 10:40

#2

Yes that is a bug i just verified. It only works on 5ghz for a standalone AP

Submitted by Astro on Thu, 2025/05/15 - 19:30

#3

Hi, 

thanks for the reply! Are you a developer? 

When do you think this will get fixed?

Did you test on a Pi-5 as well? Is it specific to this image or more likely a general problem?

Do you think this could be fixed via the config files on the SD card or via SSH?

 

Oh and to clarify: I had the problem in both directions: PC C would not connect to a network created by the Pi and the Pi would not connect to a network created by C.

Best

Adrian

Submitted by Michael on Fri, 2025/05/16 - 07:42

#4

I will add an option so the network is either 5Ghz or 2.4Ghz network not both together.  I'll add it to my TODO list but it wont be done for a while.