# RPi Zero W hangs for some minutes or is completely unavailable, dmesg errors

**URL:** <https://dietpi.com/forum/t/rpi-zero-w-hangs-for-some-minutes-or-is-completely-unavailable-dmesg-errors/22000>\
**Category:** Troubleshooting\
**Tags:** wifi\
**Created:** [21 November 2024 18:07 UTC](https://dietpi.com/forum/t/rpi-zero-w-hangs-for-some-minutes-or-is-completely-unavailable-dmesg-errors/22000 "2024-11-21T18:07:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Member0815](https://dietpi.com/forum/user_avatar/dietpi.com/member0815/32/3633_2.png) [@Member0815](https://dietpi.com/forum/u/Member0815)\
**Post date:** [21 November 2024 18:07 UTC](https://dietpi.com/forum/t/rpi-zero-w-hangs-for-some-minutes-or-is-completely-unavailable-dmesg-errors/22000/1 "2024-11-21T18:07:05Z")

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### Creating a bug report/issue

I have searched the existing open and closed issues

#### Required Information

- DietPi version | 9.8.0
- Distro version | Bullseye 1
- Kernel version | Linux RaspiZ 5.10.103+ #1529 Tue Mar 8 12:19:18 GMT 2022 armv6l GNU/Linux
- Architecture | armhf
- SBC model | RPi Zero W (armv6l)
- Power supply used | Short USB-cable from Fritzbox to RPi Zero
- SD card used | SanDisk ultra 32 GB

#### Additional Information (if applicable)

- Software title | AdGuardHome as DNS-Proxy, OpenSSH, Samba client, DietPi-Ramlog
- Was the software title installed freshly or updated/migrated? migrated
- Can this issue be replicated on a fresh installation of DietPi? unknown  
 ← If you sent a “dietpi-bugreport”, please paste the ID here → 
- Bug report ID | `39f4e3a7-fd6f-41b5-8803-df4b4f34e583`

#### Steps to reproduce

1. …Boot RPi Zero W
2. …Execute dmesg | grep brcmfmac

#### Expected behaviour

- No brcfmac errors

#### Actual behaviour

- My headless RPi Zero was running on Buster for 3 years and updated to newest versions, nearly without problems
- After migration to Bullseye with the scripts 6 month ago, I detected more and more situations where the RPi hangs for some minutes - not resolving the DNS traffic from my network or in some cases was completely unavailable per SSH or in some cases had 100% load (htop)
- I supposed the SDcard to be damaged and tested it, seems to be ok
- I set sudo iw wlan0 set power\_save off
- I found errors via dmesg | grep brcmfmac which I do not understand and may be involved in above issue, brcmf\_xx lines are marked “red” (on my RPi3B+ with same version , they aren’t)

#### Extra details

```auto
[12.757884] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[12.758965] usbcore: registered new interface driver brcmfmac
[13.018207] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[13.031472] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Jul 19 2021 03:24:18 version 7.45.98 (TOB) (56df937 CY) FWID 01-8e14b897`

```

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**Author:** ![Joulinar](https://dietpi.com/forum/user_avatar/dietpi.com/joulinar/32/57_2.png) [@Joulinar](https://dietpi.com/forum/u/Joulinar)\
**Post date:** [22 November 2024 11:27 UTC](https://dietpi.com/forum/t/rpi-zero-w-hangs-for-some-minutes-or-is-completely-unavailable-dmesg-errors/22000/2 "2024-11-22T11:27:05Z")

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I doubt these messages are related because they are generate 12-13 seconds after reboot.

Better to check whole `dmesg` and `journalctl` around the time your issue happen.

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**Author:** ![system](https://dietpi.com/forum/uploads/default/original/1X/7e1021de2213860bce185915ce2c1786e56490ec.png) [@system](https://dietpi.com/forum/u/system)\
**Post date:** [19 May 2025 23:27 UTC](https://dietpi.com/forum/t/rpi-zero-w-hangs-for-some-minutes-or-is-completely-unavailable-dmesg-errors/22000/3 "2025-05-19T23:27:48Z")

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