[RESOLVED] Bluetooth interferes with WiFi

After some trial and error, I got to the conclusion that when I use my bluetooth speakers connected to my laptop, the WiFi traffic just drops. The speakers can be connected, but if I play audio, the WiFi is affected. I can see that in the system monitor.

I don’t know if this is a driver issue (easier to address) or a hardware issue.

Here are the bluetooth and network details:

Network:
  Device-1: Intel Wi-Fi 6 AX210/AX211/AX411 160MHz driver: iwlwifi v: kernel
    pcie: speed: 5 GT/s lanes: 1 bus-ID: aa:00.0 chip-ID: 8086:2725
  IF: wlp170s0 state: up mac: <filter>
  IF-ID-1: sdwan0 state: unknown speed: 10000 Mbps duplex: full mac: N/A
Bluetooth:
  Device-1: Intel AX210 Bluetooth type: USB driver: btusb v: 0.8
    bus-ID: 1-10:5 chip-ID: 8087:0032
  Report: hciconfig ID: hci0 rfk-id: 0 state: up address: <filter>

I’m on Ubuntu 22.04.3.

Got any tips on what I can do?

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Hi @Ramon_Tayag , welcome to the forums.

can we check what radio frequency your wifi uses?

with iwconfig

thanks

Hi! Thanks for the quick response.

lo        no wireless extensions.

wlp170s0  IEEE 802.11  ESSID:"San Carlos"  
          Mode:Managed  Frequency:2.457 GHz  Access Point: 5C:A6:E6:9A:F2:6F   
          Bit Rate=21.7 Mb/s   Tx-Power=22 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=49/70  Signal level=-61 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:19  Invalid misc:289   Missed beacon:0

sdwan0    no wireless extensions.

Can you possibly use 5 GHz with your wireless router?
it could be that 2.457 GHz your wifi uses is the same frequency as that of your bluetooth, or… try another router same frequency just to be sure issue is reproduceable.

cheers. :slight_smile:

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Thanks. I will try different things. I am not that close, that’s probably why it switches to that frequency. It works fine with the MBA.

However… it’s working fine now and I don’t know why. Same location. Playing bluetooth speakers, downloading stuff via wifi. I’ll come back if anything is up.

Another thing to try if it happens again is to try

sudo btmon

This little monitor from the terminal is very verbose and will “scream” data at you if it runs into trouble. You can also toss | less on the end of it if is too difficult to parse.

sudo btmon | less

This will give you some pretty fantastic insight as to the happenings in the Bluetooth space between your BT radio and whatever you’re connected to.

Marking resolved for now, but use the tool mentioned above if it crops back up.

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