topic Re:AX211 wifi on Ubuntun 24.04 keeps disconnecti in Wireless

AX211 wifi on Ubuntun 24.04 keeps disconnecti

LinuxWifiGuy — Tue, 11 Mar 2025 15:25:56 GMT

Hi,

After upgrading to Ubuntu 24.04 my wifi keeps disconnecting when at work.

At home it works fine but when I'm at work I my bluetoothe MX Master 3 mouse and Sony headphones keeps disconnecting.

I did not have this problem in Ubuntu 22.04.

This is in a Dell Precision 5570 laptop with AX211 and the hwe kernel, upgraded today to 6.11.0-19. I was running previously with 6.8 and the same issues.

My systemd logs shows this:

mar 11 16:16:30 myhostname kernel: Bluetooth: hci0: Hardware error 0x0c
mar 11 16:16:30 myhostname kernel: Bluetooth: hci0: Retrieving Intel exception info failed (-16)

over and over again. Then blueman crashes and needs ot reload to the bluetooth is disonnected for a couple of seconds every minute or so.
Quite annoying when my bluetooth headphones and mouse have work flawlessly previously.

I'm a linux develope and can supply any needed debug info.

Re:AX211 wifi on Ubuntun 24.04 keeps disconnecti

JedG_Intel — Wed, 12 Mar 2025 06:55:54 GMT

Hi LinuxWifiGuy,

I understand that you're having issues with the connection since your mouse and headphones keeps disconnecting. I would just like to gather more information to effectively address this concern.

1. Have you tried rolling back to the previous working OS version 22.04?

2. What driver version are you using?

3. Are there other changes to the system aside from OS version?

4. Have you checked with Ubuntu support for a possible compatibility issues?

I look forward to your response.

Best regards,

Jed G.

Intel Customer Support Technician

Re: AX211 wifi on Ubuntun 24.04 keeps disconnecti

LinuxWifiGuy — Wed, 12 Mar 2025 08:03:44 GMT

1. No, that is not a workable solution since this is my work machine. We are moving forward.

2. Since yesterday in on the ubuntu 24.04 linux-generic-hwe-20.04

Ξ ~ → sudo lshw -C network
*-network 
description: Wireless interface
product: Alder Lake-P PCH CNVi WiFi
vendor: Intel Corporation
physical id: 14.3
bus info: pci@0000:00:14.3
logical name: wlp0s20f3
version: 01
serial: 3c:e9:f7:b6:4c:7f
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=6.11.0-19-generic firmware=89.202a2f7b.0 so-a0-gf-a0-89.uc ip=192.168.1.220 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: iomemory:610-60f irq:16 memory:6187194000-6187197fff

3. There are no kernel changes or firmware changes. I have of course installed the tools I need to work. This problem only appears at work so I suspect it's due to a more challenging radio environment. That should not make the driver crash though.

4. I have search everywhere for this specific error message and haven't found any exact matches.

Today I working at home and see no issues but this has been the standard the last weeks. Here I only use 1 BT mouse and wifi 6 5GHz.
At work my wifi is hard disabled and I use multiple bt devices in a open area landscape where we are have many other embedded devies with WIFI, BT and BT LE enabled.
I often starts out fine but after a couple of minutes the bluetooth starts disconnecting and reconnercting

Re:AX211 wifi on Ubuntun 24.04 keeps disconnecti

JedG_Intel — Thu, 13 Mar 2025 03:15:03 GMT

Hi LinuxWifiGuy,

Thank you for sharing all this information with me. I will be conducting an investigation and I'll get back to you as soon as possible.

Best regards,

Jed G.

Intel Customer Support Technician

Re:AX211 wifi on Ubuntun 24.04 keeps disconnecti

JedG_Intel — Mon, 17 Mar 2025 05:32:12 GMT

Hi LinuxWifiGuy,

After careful review, it seems that version 24.04 is the latest stable release. We recommend that you consult with your Ubuntu distributor for further assistance.

Best regards,

Jed G.

Intel Customer Support Technician

Re: AX211 wifi on Ubuntun 24.04 keeps disconnecti

LinuxWifiGuy — Mon, 17 Mar 2025 17:37:35 GMT

Where do I file hardware issues with Intel drivers at Ubuntu?

Also could you help in deciphering these lines from the iwlwifi driver?

mar 11 16:16:30 myhostname kernel: Bluetooth: hci0: Hardware error 0x0c
mar 11 16:16:30 myhostname kernel: Bluetooth: hci0: Retrieving Intel exception info failed (-16)

What does the error code imply?

Re:AX211 wifi on Ubuntun 24.04 keeps disconnecti

JedG_Intel — Tue, 18 Mar 2025 05:40:00 GMT

Hello LinuxWifiGuy,

For specific contact information to report issues with Intel drivers, we do not have access to this information. However, I can share their contact page with you here:: https://ubuntu.com/desktop/contact-us

Regarding the error message you shared, I will need to conduct further research and will provide you with an update as soon as possible.

Best regards,

Jed G.

Intel Customer Support Technician

Re:AX211 wifi on Ubuntun 24.04 keeps disconnecti

JedG_Intel — Wed, 19 Mar 2025 05:11:53 GMT

Hello LinuxWifiGuy,

I'm getting back in touch to gather more information to be able to address your concern. Please see below.

1. What is your current kernel version?

2. Please share the output of the following commands when the issue happens.

hciconfig -a
hciconfig -i <interface name> up
lsusb | grep 8087
modinfo btintel
dmesg | grep Bluetooth

I hope to hear from you soon.

Best regards,

Jed G.

Intel Customer Support Technician

Re:AX211 wifi on Ubuntun 24.04 keeps disconnecti

DeancR_Intel — Tue, 25 Mar 2025 06:09:32 GMT

Hello LinuxWifiGuy,

I wanted to follow up on the previous message regarding your inquiry. Have you had a chance to review it? If you have any questions or need further information, please let me know.

Best regards,

Dean R.

Intel Customer Support Technician

Re:AX211 wifi on Ubuntun 24.04 keeps disconnecti

JedG_Intel — Mon, 31 Mar 2025 02:45:41 GMT

Hi LinuxWifiGuy,

I sent you an email. Please check your inbox at your earliest convenience.

Best regards,

Jed G.

Intel Customer Support Technician

Re: Re:AX211 wifi on Ubuntun 24.04 keeps disconnecti

LinuxWifiGuy — Tue, 01 Apr 2025 13:12:34 GMT

~ → bash -xc "hciconfig -a ; lsusb | grep 8087 ; modinfo btintel ; sudo dmesg | grep Bluetooth"

+ hciconfig -a

hci0: Type: Primary Bus: USB

BD Address: 3C:E9:F7:B6:4C:83 ACL MTU: 1021:4 SCO MTU: 96:6

UP RUNNING PSCAN

RX bytes:78604503 acl:400727 sco:0 events:1226113 errors:0

TX bytes:804240 acl:1132 sco:0 commands:3873 errors:0

Features: 0xbf 0xfe 0x0f 0xfe 0xdb 0xff 0x7b 0x87

Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3

Link policy: RSWITCH SNIFF

Link mode: PERIPHERAL ACCEPT

Name: 'my-hostname'

Class: 0x7c010c

Service Classes: Rendering, Capturing, Object Transfer, Audio, Telephony

Device Class: Computer, Laptop

HCI Version: 5.3 (0xc) Revision: 0x363c

LMP Version: 5.3 (0xc) Subversion: 0x363c

Manufacturer: Intel Corp. (2)

+ lsusb

+ grep 8087

Bus 002 Device 007: ID 8087:0b40 Intel Corp. USB3.0 Hub

Bus 003 Device 005: ID 8087:0033 Intel Corp. AX211 Bluetooth

+ modinfo btintel

filename: /lib/modules/6.11.0-21-generic/kernel/drivers/bluetooth/btintel.ko.zst

firmware: intel/ibt-12-16.ddc

firmware: intel/ibt-12-16.sfi

firmware: intel/ibt-11-5.ddc

firmware: intel/ibt-11-5.sfi

license: GPL

version: 0.1

description: Bluetooth support for Intel devices ver 0.1

author: Marcel Holtmann <marcel@holtmann.org>

srcversion: 0AD2ECE31D5B7E0A9DD7EA5

depends: bluetooth

retpoline: Y

intree: Y

name: btintel

vermagic: 6.11.0-21-generic SMP preempt mod_unload modversions

sig_id: PKCS#7

signer: Build time autogenerated kernel key

sig_key: 24:7C:47:20:69:E9:70:3F:F6:48:E6:DD:DC:F7:8E:F7:8E:65:9C:AA

sig_hashalgo: sha512

signature: 48:63:AD:63:7B:B7:67:F0:4E:0F:C1:66:D8:20:60:63:97:7B:9E:A6:

24:12:5D:24:3F:50:76:1D:6F:D5:B8:7A:98:A7:1D:FD:BE:D1:80:02:

78:A9:9A:E5:89:E2:3C:D3:6D:F8:1F:F6:C4:94:DE:9F:9D:CD:6C:91:

E1:D4:5B:5C:CE:2E:34:C9:BB:B8:57:2A:B3:FB:C2:CB:00:91:4B:7D:

89:B1:4B:53:F5:D2:53:EF:34:88:4C:86:2E:BF:34:AB:25:81:AE:84:

BC:70:EB:29:27:D5:99:B7:F4:5D:20:A1:5C:D3:27:7E:72:3C:62:DA:

E3:37:EA:74:D5:5C:CA:91:1F:6D:E4:D9:89:5C:98:84:19:EE:A6:12:

9F:8C:C4:DE:52:48:29:1C:21:44:98:46:CF:2A:FD:21:CC:37:80:93:

E3:9A:57:DB:5D:73:79:F8:BF:7A:D3:6F:01:30:3B:E1:88:56:19:74:

F3:22:A1:BD:2F:5B:D8:78:1A:5A:9C:D4:DC:97:92:B1:81:AB:E9:83:

C7:96:7E:B9:B2:5D:23:99:09:7A:0A:B4:B9:C0:4A:12:37:12:37:54:

E0:3A:EE:34:9F:AA:92:AE:77:E6:71:5A:00:7C:F0:76:32:E6:34:AA:

89:CF:85:25:6D:92:30:86:C3:B9:BF:D7:0B:E5:3C:5A:76:98:D6:A0:

37:10:49:26:50:E2:CD:99:FA:EE:68:E1:36:02:5E:69:BE:82:71:CF:

25:74:BC:42:02:FE:B0:DF:5F:E2:BF:03:9F:09:9D:36:DF:54:1B:32:

7C:C9:09:0C:2D:16:BA:EE:83:4B:1B:D6:9C:0C:F3:22:6E:01:D9:8C:

B7:39:8A:C4:C7:67:69:CC:94:5D:93:2B:77:74:B3:AD:DC:0E:E2:52:

EE:E6:6D:28:8E:66:3D:68:99:54:D7:E7:BA:D6:D1:58:4B:A7:51:7F:

26:29:61:C3:74:44:6C:96:B9:CC:81:32:CE:8B:63:B7:F7:C7:75:9D:

41:5E:38:7F:2E:F9:4B:6C:A4:A4:2E:4A:59:A0:57:F6:2B:40:5B:8E:

57:9B:0A:B3:C1:33:E4:2C:C0:4C:26:AE:2C:FB:B5:58:BB:9A:F6:A9:

39:4F:32:1C:AB:EF:A7:FD:A4:31:E4:72:AC:F2:12:98:B4:3E:50:8B:

C7:FA:9D:4D:D7:81:3F:26:80:13:66:85:5B:71:6D:47:F4:37:F1:F9:

AD:A9:42:50:92:4B:45:7E:30:C7:6B:62:48:B0:95:DC:75:87:CF:A1:

34:A4:53:DD:BB:9A:94:79:7E:61:EB:EE:8F:6D:4B:B7:80:05:99:9F:

97:C7:09:6E:3D:E7:D2:FA:7B:95:2D:75

+ sudo dmesg

+ grep Bluetooth

[ 20.999066] Bluetooth: Core ver 2.22

[ 20.999086] Bluetooth: HCI device and connection manager initialized

[ 20.999089] Bluetooth: HCI socket layer initialized

[ 20.999090] Bluetooth: L2CAP socket layer initialized

[ 20.999093] Bluetooth: SCO socket layer initialized

[ 22.106268] Bluetooth: hci0: Device revision is 0

[ 22.106272] Bluetooth: hci0: Secure boot is enabled

[ 22.106273] Bluetooth: hci0: OTP lock is enabled

[ 22.106274] Bluetooth: hci0: API lock is enabled

[ 22.106274] Bluetooth: hci0: Debug lock is disabled

[ 22.106275] Bluetooth: hci0: Minimum firmware build 1 week 10 2014

[ 22.106277] Bluetooth: hci0: Bootloader timestamp 2019.40 buildtype 1 build 38

[ 22.107851] Bluetooth: hci0: DSM reset method type: 0x00

[ 22.114778] Bluetooth: hci0: Found device firmware: intel/ibt-0040-0041.sfi

[ 22.114789] Bluetooth: hci0: Boot Address: 0x100800

[ 22.114790] Bluetooth: hci0: Firmware Version: 60-48.23

[ 22.664323] Bluetooth: BNEP (Ethernet Emulation) ver 1.3

[ 22.664327] Bluetooth: BNEP filters: protocol multicast

[ 22.664330] Bluetooth: BNEP socket layer initialized

[ 23.890402] Bluetooth: hci0: Waiting for firmware download to complete

[ 23.891242] Bluetooth: hci0: Firmware loaded in 1734823 usecs

[ 23.891366] Bluetooth: hci0: Waiting for device to boot

[ 23.907248] Bluetooth: hci0: Device booted in 15587 usecs

[ 23.909606] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-0040-0041.ddc

[ 23.911427] Bluetooth: hci0: Applying Intel DDC parameters completed

[ 23.914437] Bluetooth: hci0: Firmware timestamp 2023.48 buildtype 1 build 75324

[ 23.914460] Bluetooth: hci0: Firmware SHA1: 0x23bac558

[ 23.918385] Bluetooth: hci0: Fseq status: Success (0x00)

[ 23.918407] Bluetooth: hci0: Fseq executed: 00.00.02.41

[ 23.918415] Bluetooth: hci0: Fseq BT Top: 00.00.02.41

[ 23.989518] Bluetooth: MGMT ver 1.23

[ 24.122336] Bluetooth: hci0: Bad flag given (0x1) vs supported (0x0)

[ 24.122376] Bluetooth: hci0: Bad flag given (0x1) vs supported (0x0)

[ 24.122403] Bluetooth: hci0: Bad flag given (0x1) vs supported (0x0)

[ 24.279070] Bluetooth: RFCOMM TTY layer initialized

[ 24.279079] Bluetooth: RFCOMM socket layer initialized

[ 24.279083] Bluetooth: RFCOMM ver 1.11

[ 2776.719463] Bluetooth: hci0: Hardware error 0x0c

[ 2776.733618] Bluetooth: hci0: Retrieving Intel exception info failed (-16)

[16885.841507] Bluetooth: hci0: Hardware error 0x0c

[16885.855552] Bluetooth: hci0: Retrieving Intel exception info failed (-16)

[16967.424524] Bluetooth: hci0: Hardware error 0x0c

[16967.438558] Bluetooth: hci0: Retrieving Intel exception info failed (-16)

[16995.442382] Bluetooth: hci0: Hardware error 0x0a

[16995.456615] Bluetooth: hci0: Retrieving Intel exception info failed (-16)

[18565.856549] Bluetooth: hci0: Hardware error 0x0c

[18565.870580] Bluetooth: hci0: Retrieving Intel exception info failed (-16)

[18660.135531] Bluetooth: hci0: Hardware error 0x0c

[18660.149678] Bluetooth: hci0: Retrieving Intel exception info failed (-16)

[19001.624529] Bluetooth: hci0: Hardware error 0x0a

[19001.638528] Bluetooth: hci0: Retrieving Intel exception info failed (-16)

[19742.060423] Bluetooth: hci0: Hardware error 0x0c

[19742.074493] Bluetooth: hci0: Retrieving Intel exception info failed (-16)

[20661.444530] Bluetooth: hci0: Hardware error 0x0c

[20661.458645] Bluetooth: hci0: Retrieving Intel exception info failed (-16)

NOTE:

"hciconfig -i hci0" up is not a valid command in my version of hciconfig