Endless [Wi-fi Network Authentication Required]

[aq74i]

• https://github.com/Dunedan/mbp-2016-linux
  https://gist.github.com/roadrunner2/128 ... c6a92f9cd7
  https://bugzilla.kernel.org/show_bug.cgi?id=193121

It was less direct and I ended up on a bunch of other sites looking for answers as well, but iirc, the bread trail was essentially something like this (1 to 2, then 3). I tried all the stuff over there before eventually ending up here at the mint forums.


According to
https://support.apple.com/kb/SP749?view ... cale=ja_JP
https://support.apple.com/kb/SP748?view ... cale=ja_JP
the wireless specs of this 13,2 model and the 13,3 model are both the same:
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible
though the other specs look a bit different. Am not sure if this information is helpful or not, so just included the links in case.


Also, last night/this morning, I wiped everything as much as possible, then reinstalled mint from the flash drive.
(Context: Had previously installed it on a partition beside macos. There was a lack of space, and I was wondering if macos existing on the same computer, albeit different partition, had an effect on function in mint.)
If I ought to redo all the steps we worked though, like changing the kernel and reinstalling the script, please let me know.
Thank you again for all the suggestions and being so patient!

[aq74i]

Sorry for the upcoming long, text-y post. Typed it out as things happened, but didn't want to accidentally omit anything potentially helpful. I underlined the section with all the steps I took just in case it's useful.



I just rebooted after following kernel manager's call to update kernel version,

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~$ uname -r
5.15.0-73-generic

and noticed that there was no "you are disconnected" pop-up for "authentication required",
though there was one this morning when I booted up the machine after the clean install of mint.
It's a bit of a weak signal and connection compared to ethernet cable, but I think the wi-fi is working now!

Am going to unplug the ethernet cable and run a speedtest.

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$ speedtest
Retrieving speedtest.net configuration...
Testing from NTT (153.231.3.157)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by i3D.net (Tokyo) [347.48 km]: 38.068 ms
Testing download speed................................................................................
Download: 25.91 Mbit/s
Testing upload speed......................................................................................................
Upload: 12.87 Mbit/s

It's working, I think!!
Am not sure if any of the following things helped, so am just going to list everything I remember.
Booted into recovery mode, went into the Linux Mint installer, did manual partitions according to https://www.addictivetips.com/ubuntu-li ... artitions/ , while deleting everything on the machine that I could, then did a clean install of mint.
This morning, before updating the kernel,
I followed Driver Updates and System Updates, updating whatever came up, and rebooted.
I went to Input Methods, to install Japanese language input, changed the input method framework to Fcitx, and rebooted.
I went to Language Settings, and changed
Language to English, Ireland
Region to Japanese, Japan
Time format to Japanese, Japan
and then clicked on Apply System-Wide, and I think I rebooted after that as well.
I didn't install anything else, nor use any programs apart from Firefox and Thunderbird.

Also, whilst typing this post, was trying to google in an attempt to remember what Language Settings was called, and the internet wasn't working despite zero new notifications for disconnection or anything. I ran a speedtest, which gave me this.

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$ speedtest
Retrieving speedtest.net configuration...
Cannot retrieve speedtest configuration
ERROR: <urlopen error [Errno -2] Name or service not known>

After a bit of waiting and retrying (maybe 4 minutes?), the wi-fi is back up again. I can google "potato" and it gives me potato within a few seconds. Ran a speedtest to check and there seems to be a change (hosted by..., and also upload speed has overtaken download speed)? Am not sure if it's significant or not.

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:~$ speedtest
Retrieving speedtest.net configuration...
Testing from NTT (153.231.3.157)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by SoftEther Corporation (Tsukuba) [390.04 km]: 28.966 ms
Testing download speed................................................................................
Download: 29.50 Mbit/s
Testing upload speed......................................................................................................
Upload: 40.13 Mbit/s

Sorry for the long text, thank you for reading.


Sorry, tried to submit the post but the internet failed again. Thankfully, CrtlA+Ced just in case. It might return in a few minutes. Meanwhile, ran a speedtest and got a similar result.

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~$ speedtest
Retrieving speedtest.net configuration...
Cannot retrieve speedtest configuration
ERROR: <urlopen error [Errno -2] Name or service not known>

Just tried sticking the ethernet cable via adapter back in to the USB port, but it's not registering in the Network Manager applet. Wifi just returned after about 6ish minutes. Googling potato took twice or thrice as long.
Ran another speedtest. It's switched back to Tokyo from Tsukaba. Could it be that this switching is the cause for these periods of zero connection?

Code: Select all

$ speedtest
Retrieving speedtest.net configuration...
Testing from NTT (153.231.3.157)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by i3D.net (Tokyo) [347.48 km]: 24.083 ms
Testing download speed................................................................................
Download: 44.48 Mbit/s
Testing upload speed......................................................................................................
Upload: 84.75 Mbit/s

Will reboot and brb.


Rebooted, am back. Wired connection is going, and wifi seems to still be working. There is a good connection, though likely due to ethernet.

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~$ speedtest
Retrieving speedtest.net configuration...
Testing from NTT (153.231.3.157)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by i3D.net (Tokyo) [347.48 km]: 27.514 ms
Testing download speed................................................................................
Download: 85.05 Mbit/s
Testing upload speed......................................................................................................
Upload: 95.43 Mbit/s

Does this mean the issue is solved? I honestly don't know.
Assuming everything stays the way it has been for the past hour, there is now wifi, though it periodically stops and starts again.

@JeremyB
What do you think?

[aq74i]

update: Rebooted while trying and failing to get Japanese input to work. Wifi stopped connecting. There are no more authentication required pop-ups, and the connection applet says "connecting" for a longer period of time, but it results in failure to connect.
Didn't run anything in terminal or do anything significant.

The new notification reads:
"Connection failed"
"Activation of network connection failed"

[JeremyB]

Post results for

Code: Select all

for a in /sys/kernel/debug/brcmfmac/*/revinfo; do echo "\"$a\""; cat "$a"; done

Also post the contents of that broadcom text file you have

[aq74i]

Sorry, I don't know how to code and am not sure how to fix it. Tried putting sudo in front when it said permission denied.

~$ for a in /sys/kernel/debug/brcmfmac/*/revinfo; do echo "\"$a\""; cat "$a"; done
"/sys/kernel/debug/brcmfmac/*/revinfo"
cat: '/sys/kernel/debug/brcmfmac/*/revinfo': Permission denied

~$ sudo for a in /sys/kernel/debug/brcmfmac/*/revinfo; do echo "\"$a\""; cat "$a"; done
bash: syntax error near unexpected token `do'

This is a screenshot of the folder it was in. Because I did a clean reinstall of Mint, I don't have that file anymore.
https://pasteboard.co/GXwUbM65GaOx.png
↓
I went to download it again, but this time I didn't put it in the lib>firmware>brcm folder.
These are the contents. Previously, I'd changed the values
「ccode」and「regrev」 to 0 or 1 according to the forum, and rebooted each time to see if the wifi would work.
I also used ip link, to find the mac address, which I put into 「macaddr」, replacing xx:xx:xx:xx:xx:xx

Code: Select all

boardrev=0x1101

sromrev=11
boardtype=0x073e
vendid=0x14e4
devid=0x43ba

macaddr=xx:xx:xx:xx:xx:xx

ccode=X3
regrev=15


# Board flags:
# X BFL_BTCOEXIST          = 0x00000001   This board implements Bluetooth coexistence
#   BFL_EXTLNA             = 0x00001000   This board has an external LNA (2G)
#   BFL_FEM_BT             = 0x00400000   This board has shared antenna w/ BT
# X BFL_PALDO              = 0x02000000   Power topology uses PALDO ? - CHECK
#   BFL_EXTLNA_5GHz        = 0x10000000   Board has an external LNA in 5GHz band
boardflags=0x02000001

# Board flags 2:
#   BFL2_BT_SHARE_ANT0     = 0x00800000   share core0 antenna with BT
# X BFL2_LNA1BYPFORTR2G    = 0x40000000   acphy, enable lna1 bypass for 2G clip lo
# X BFL2_LNA1BYPFORTR5G    = 0x80000000   acphy, enable lna1 bypass for 5G clip lo
# X BFL2_SPUR_WAR          = 0x00000200   Board has a WAR for clock-harmonic spurs
#   BFL2_2G_SPUR_WAR       = 0x00002000   Board has a WAR to reduce and avoid clock-harmonic spurs in 2G band
boardflags2=0xC0000000

# Board flags 3:
# X BFL3_RCAL_WAR          = 0x00000008   acphy rcal war active on this board (mainly for 4335a0)
# X BFL3_FEMTBL_FROM_NVRAM = 0x00000100   acphy, femctrl table is read from nvram
boardflags3=0x40000108

#btc_mode=0

#### added rx de-sense

btcdyn_flags=0x7
# Media profile
btcdyn_profile_type=0x2  
btcdyn_dflt_dsns_level=0
btcdyn_low_dsns_level=0
btcdyn_mid_dsns_level=21
btcdyn_high_dsns_level=22
btcdyn_default_btc_mode=4
# --- number of rows in the array vars below ---
btcdyn_msw_rows=1
btcdyn_dsns_rows=1
# --- mode switch data rows (max is 4) ---
btcdyn_msw_row0=1,-16,-95,-100
# --- desense switching data rows (max is 4) ---
btcdyn_dsns_row0=4,-16,-63,-95

#### end of rx de-sense


xtalfreq=40000
otpimagesize=484
nocrc=1
muxenab=0x1
btc_params82=0x60



########################################################
# RF Control Definitions

antswitch=0
rxchain=3
txchain=3
aa2g=3
aa5g=3
femctrl=10

# antenna gain per core g-band
agbg0=2
agbg1=2

# antenna gain per core a-band
aga0=2
aga1=2

# RFSWCTRL 2G and 5G iLNA
#            WL_TX,     WL_RX,     WL_RX_ATTN, BT_TX_RX, WL_MASK
swctrlmap_2g=0x04010401,0x08080808,0x04010401,0x00000000,0x000000ff
swctrlmap_5g=0x08080808,0x04010401,0x08080808,0x00000000,0x000000ff

swctrlmapext_2g=0x00000000,0x00000000,0x00000000,0x000000,0x003
swctrlmapext_5g=0x00000000,0x00000000,0x00000000,0x000000,0x003
########################################################

# Bypass offsetting PAPD_EPS_TABLE_PER_TX_INDEX feature
epsdelta2g0=0,-1,0,0,0,0,0,0
epsdelta2g1=0,-1,0,0,0,0,0,0

########################################################
# Rx gain and RSSI parameters
#
# Default so do not set:
# rxgaincal_rssical=0
# rssi_cal_rev=0
# rxgains[25]gtrisoa[01]
# rxgains[25]g[mh]trelnabypa[01]=0

# BW20,BW40
rssicorrnorm_c0=4,4
rssicorrnorm_c1=4,4

# subband5gver=4 =>
# BW20,BW40,BW80  <5250|<5500|<5745|>=5745
#                  <70m| <100| <149|>=149
rssicorrnorm5g_c0=1,2,3,1,2,3,1,2,3,1,2,3
rssicorrnorm5g_c1=1,2,3,1,2,3,1,2,3,1,2,3

########################################################


########################################################
# 20 MHz in 40 MHz Power Offsets and Duplicate Modes
# 2G and 5G bands

sb20in40hrpo=0x0
sb20in40lrpo=0x0

dot11agduphrpo=0x0
dot11agduplrpo=0x0
########################################################


########################################################
# PAPD parameters
fastpapdgainctrl=0

########################################################
# 2G TSSI / PA Parameters

tworangetssi2g=1
tssipos2g=1
extpagain2g=2
pdgain2g=2

# 2G Max Power
maxp2ga0=74
maxp2ga1=74

# 2G PA Parameters
# Order is A1,B0,B1
#pa2ga0=-125,6514,-739  used for p113 and p115
#pa2ga1=-141,6391,-738  used for p113 and p115
#pa2ga0=-169,6473,-759
#pa2ga1=-174,6462,-759
pa2ga0=-162,6368,-735
pa2ga1=-170,6349,-742



# 2G Power Offsets
cckbw202gpo=0x0000
cckbw20ul2gpo=0x0000
mcsbw202gpo=0x99644422
mcsbw402gpo=0x99644422
dot11agofdmhrbw202gpo=0x6666
ofdmlrbw202gpo=0x0022

########################################################

#AvVmid_c0=2,140,2,145,2,145,2,145,2,145
#AvVmid_c1=2,140,2,145,2,145,2,145,2,145
#AvVmid_c2=0,0,0,0,0,0,0,0,0,0

# AvVmid 2GHz and 5GHz LabNotebook 43569A2_012 data from pcieir
AvVmid_c0=2,140,2,125,2,125,2,135,2,135
AvVmid_c1=2,140,3,100,3,100,3,100,3,100
AvVmid_c2=0,0,0,0,0,0,0,0,0,0

########################################################
# 5G TSSI / PA Parameters

tworangetssi5g=0
tssipos5g=1
extpagain5g=2
subband5gver=0x4
pdgain5g=2

# 5G Max Powers
maxp5ga0=74,74,74,74
maxp5ga1=74,74,74,74

# 5G PA Parameters initial
#pa5ga0=152,5462,658,150,5547,663,150,5950,697,170,5782,688
#pa5ga1=177,5661,685,178,5712,691,166,6161,725,195,5811,706

# 5G PA Parameters *** from LabNotebook 43569A0_099 TSSI opt for 8::18:
#pa5ga0=-181,5835,-709,-183,5842,-712,-186,5832,-710,-187,5744,-703
#pa5ga1=-198,5767,-710,-190,5915,-721,-185,6067,-732,-186,6024,-731

# Updated with LabNotebook 43569A2_012
pa5ga0=-194,5833,-713,-186,6042,-730,-181,5927,-714,-197,5562,-687
pa5ga1=-186,6139,-737,-196,5988,-726,-203,5852,-713,-204,5836,-713



# 5G Power Offsets
mcsbw205glpo=0x88766663
mcsbw405glpo=0x88666663
mcsbw805glpo=0xbb666665
mcsbw205gmpo=0xd8666663
mcsbw405gmpo=0x88666663
mcsbw805gmpo=0xcc666665
mcsbw205ghpo=0xdc666663
mcsbw405ghpo=0xaa666663
mcsbw805ghpo=0xdd666665
mcslr5glpo=0x0000
mcslr5gmpo=0x0000
mcslr5ghpo=0x0000
sb20in40hrpo=0x0
sb20in80and160hr5glpo=0x0
sb40and80hr5glpo=0x0
sb20in80and160hr5gmpo=0x0
sb40and80hr5gmpo=0x0
sb20in80and160hr5ghpo=0x0
sb40and80hr5ghpo=0x0
sb20in40lrpo=0x0
sb20in80and160lr5glpo=0x0
sb40and80lr5glpo=0x0
sb20in80and160lr5gmpo=0x0
sb40and80lr5gmpo=0x0
sb20in80and160lr5ghpo=0x0
sb40and80lr5ghpo=0x0

pdoffset40ma0=0x0000
pdoffset80ma0=0x0000
pdoffset40ma1=0x0000
pdoffset80ma1=0x0000

########################################################


########################################################
# Temperature Values

tempthresh=120
tempoffset=255
rawtempsense=0x1ff

phycal_tempdelta=255
temps_period=15
temps_hysteresis=15

########################################################

Also, today I brought the laptop to the university and tried to connect to the internet but it failed the same way as it did with the router in this apartment.

[JeremyB]

Try this

Code: Select all

sudo -i
for a in /sys/kernel/debug/brcmfmac/*/revinfo; do echo "\"$a\""; cat "$a"; done

Copy the info, then exit

[aq74i]

Sorry for the late reply.

I pasted into terminal and hit enter, and it asked me for the password which I entered, but nothing appeared in the terminal, except that there's root@ before userid now.
Is the info in a folder somewhere?
Sorry, I don't know where to find it.

Edit: I just tried to close the terminal but it says
"Close this terminal?"
"There is still a process running in this terminal. Closing it will kill it."
Though it's already been about forty minutes and nothing has appeared in the terminal.

Another edit:
Did nothing print out because I don't have that file since this is a fresh install of Mint?

[JeremyB]

did you enter 2 commands or paste it as one? If pasted as one it may have caused issues

[aq74i]

Sorry, I pasted everything together. Will paste line by line from now on. Thank you for teaching me.

"/sys/kernel/debug/brcmfmac/*/revinfo"
cat: '/sys/kernel/debug/brcmfmac/*/revinfo': No such file or directory

[JeremyB]

Did you run the command I posted or did you

Code: Select all

cat /sys/kernel/debug/brcmfmac/*/revinfo

Post results for

Code: Select all

sudo ls /sys/kernel/debug/brcmfmac/

[aq74i]

Code: Select all

~$ cat /sys/kernel/debug/brcmfmac/*/revinfo
cat: '/sys/kernel/debug/brcmfmac/*/revinfo': Permission denied
~$ sudo cat /sys/kernel/debug/brcmfmac/*/revinfo              
cat: '/sys/kernel/debug/brcmfmac/*/revinfo': No such file or directory

~$ sudo ls /sys/kernel/debug/brcmfmac/
ls: cannot access '/sys/kernel/debug/brcmfmac/': No such file or directory

[JeremyB]

You have to run it as shown in viewtopic.php?p=2334965#p2334965

[aq74i]

Copy and pasted into two separate lines, then copied everything and pasted here.

Code: Select all

aqsy@aqsy-melon13:~$ sudo -i
[sudo] password for aqsy:                  
root@aqsy-melon13:~# for a in /sys/kernel/debug/brcmfmac/*/revinfo; do echo "\"$a\""; cat "$a"; done
"/sys/kernel/debug/brcmfmac/*/revinfo"
cat: '/sys/kernel/debug/brcmfmac/*/revinfo': No such file or directory
root@aqsy-melon13:~# 

[JeremyB]

Any result for

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sudo ls /sys/kernel/debug/brcmfmac/

[aq74i]

Code: Select all

aqsy@aqsy-melon13:~$ sudo ls /sys/kernel/debug/brcmfmac/
[sudo] password for aqsy:                  
ls: cannot access '/sys/kernel/debug/brcmfmac/': No such file or directory

[JeremyB]

What results from

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lsmod

[aq74i]

Code: Select all

aqsy@aqsy-melon13:~$ lsmod
Module                  Size  Used by
hid_apple              16384  0
rfcomm                 81920  16
ip6t_REJECT            16384  1
nf_reject_ipv6         20480  1 ip6t_REJECT
xt_hl                  16384  22
ip6_tables             32768  52
ip6t_rt                20480  3
ipt_REJECT             16384  1
nf_reject_ipv4         16384  1 ipt_REJECT
xt_LOG                 20480  10
nf_log_syslog          20480  10
nft_limit              16384  13
cmac                   16384  3
algif_hash             16384  1
xt_limit               16384  0
algif_skcipher         16384  1
xt_addrtype            16384  4
af_alg                 32768  6 algif_hash,algif_skcipher
bnep                   28672  2
xt_tcpudp              20480  18
xt_conntrack           16384  16
nf_conntrack          172032  1 xt_conntrack
nf_defrag_ipv6         24576  1 nf_conntrack
nf_defrag_ipv4         16384  1 nf_conntrack
nft_compat             20480  135
nft_counter            16384  170
nf_tables             249856  389 nft_compat,nft_counter,nft_limit
nfnetlink              20480  2 nft_compat,nf_tables
zfs                  4112384  6
zunicode              348160  1 zfs
zzstd                 491520  1 zfs
zlua                  163840  1 zfs
zavl                   16384  1 zfs
icp                   311296  1 zfs
zcommon               106496  2 zfs,icp
znvpair                98304  2 zfs,zcommon
spl                   118784  6 zfs,icp,zzstd,znvpair,zcommon,zavl
snd_hda_codec_hdmi     77824  1
snd_hda_codec_cs8409    32768  1
snd_hda_codec_generic   102400  1 snd_hda_codec_cs8409
ledtrig_audio          16384  1 snd_hda_codec_generic
snd_soc_skl           172032  0
snd_soc_hdac_hda       24576  1 snd_soc_skl
snd_hda_ext_core       32768  2 snd_soc_hdac_hda,snd_soc_skl
snd_soc_sst_ipc        20480  1 snd_soc_skl
snd_soc_sst_dsp        36864  1 snd_soc_skl
snd_soc_acpi_intel_match    61440  1 snd_soc_skl
snd_soc_acpi           16384  2 snd_soc_acpi_intel_match,snd_soc_skl
snd_soc_core          339968  2 snd_soc_hdac_hda,snd_soc_skl
snd_compress           24576  1 snd_soc_core
ac97_bus               16384  1 snd_soc_core
snd_pcm_dmaengine      16384  1 snd_soc_core
snd_hda_intel          53248  2
snd_intel_dspcfg       28672  2 snd_hda_intel,snd_soc_skl
snd_intel_sdw_acpi     20480  1 snd_intel_dspcfg
snd_hda_codec         163840  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_codec_cs8409,snd_hda_intel,snd_soc_hdac_hda
snd_hda_core          110592  8 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_codec_cs8409,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_soc_hdac_hda,snd_soc_skl
snd_hwdep              16384  1 snd_hda_codec
snd_pcm               143360  8 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_compress,snd_soc_core,snd_soc_skl,snd_hda_core,snd_pcm_dmaengine
snd_seq_midi           20480  0
snd_seq_midi_event     16384  1 snd_seq_midi
snd_rawmidi            49152  1 snd_seq_midi
snd_seq                77824  2 snd_seq_midi,snd_seq_midi_event
intel_rapl_msr         20480  0
intel_rapl_common      40960  1 intel_rapl_msr
intel_tcc_cooling      16384  0
x86_pkg_temp_thermal    20480  0
snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi
intel_powerclamp       20480  0
snd_timer              40960  2 snd_seq,snd_pcm
coretemp               24576  0
brcmfmac              409600  0
kvm_intel             368640  0
snd                   106496  17 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_codec_cs8409,snd_hda_intel,snd_hda_codec,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi
kvm                  1028096  1 kvm_intel
brcmutil               20480  1 brcmfmac
mei_hdcp               24576  0
applesmc               24576  0
nls_iso8859_1          16384  1
rapl                   20480  0
intel_cstate           20480  0
joydev                 32768  0
input_leds             16384  0
cfg80211              974848  1 brcmfmac
soundcore              16384  1 snd
apple_mfi_fastcharge    20480  0
hci_uart              147456  0
btqca                  24576  1 hci_uart
btrtl                  24576  1 hci_uart
mei_me                 40960  1
btbcm                  24576  1 hci_uart
sbs                    20480  0
8250_dw                16384  0
btintel                40960  1 hci_uart
mei                   135168  3 mei_hdcp,mei_me
intel_xhci_usb_role_switch    16384  0
bluetooth             704512  44 btrtl,btqca,btintel,hci_uart,btbcm,bnep,rfcomm
ecdh_generic           16384  2 bluetooth
sbshc                  16384  1 sbs
ecc                    36864  1 ecdh_generic
mac_hid                16384  0
apple_bl               20480  0
sch_fq_codel           20480  2
msr                    16384  0
parport_pc             49152  0
ppdev                  24576  0
lp                     28672  0
parport                69632  3 parport_pc,lp,ppdev
pstore_blk             16384  0
ramoops                32768  0
reed_solomon           28672  1 ramoops
pstore_zone            32768  1 pstore_blk
efi_pstore             16384  0
ip_tables              32768  8
x_tables               53248  12 xt_conntrack,nft_compat,xt_LOG,xt_tcpudp,xt_addrtype,ip6t_rt,ip6_tables,ipt_REJECT,ip_tables,xt_limit,xt_hl,ip6t_REJECT
autofs4                49152  2
btrfs                1560576  0
blake2b_generic        20480  0
xor                    24576  1 btrfs
zstd_compress         229376  1 btrfs
raid6_pq              122880  1 btrfs
libcrc32c              16384  3 nf_conntrack,btrfs,nf_tables
dm_mirror              24576  0
dm_region_hash         24576  1 dm_mirror
dm_log                 20480  2 dm_region_hash,dm_mirror
r8153_ecm              16384  0
cdc_ether              24576  1 r8153_ecm
usbnet                 53248  2 r8153_ecm,cdc_ether
hid_generic            16384  0
r8152                 114688  1 r8153_ecm
usbhid                 65536  0
hid                   151552  3 usbhid,hid_apple,hid_generic
mii                    16384  2 usbnet,r8152
i915                 3104768  20
spi_pxa2xx_platform    32768  0
dw_dmac                16384  0
dw_dmac_core           36864  1 dw_dmac
i2c_algo_bit           16384  1 i915
ttm                    86016  1 i915
drm_kms_helper        311296  1 i915
i2c_i801               36864  0
crct10dif_pclmul       16384  1
crc32_pclmul           16384  0
syscopyarea            16384  1 drm_kms_helper
ghash_clmulni_intel    16384  0
sysfillrect            20480  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
aesni_intel           376832  4
fb_sys_fops            16384  1 drm_kms_helper
cec                    61440  2 drm_kms_helper,i915
rc_core                65536  1 cec
crypto_simd            16384  1 aesni_intel
cryptd                 24576  3 crypto_simd,ghash_clmulni_intel
i2c_smbus              20480  1 i2c_i801
thunderbolt           319488  0
drm                   622592  10 drm_kms_helper,i915,ttm
nvme                   49152  3
intel_lpss_pci         24576  4
nvme_core             135168  5 nvme
intel_lpss             16384  1 intel_lpss_pci
xhci_pci               24576  0
idma64                 20480  0
xhci_pci_renesas       20480  1 xhci_pci
applespi               49152  0
video                  65536  1 i915

[JeremyB]

Code: Select all

sudo rm /etc/modprobe.d/brcmfmac.conf 

Reboot and then see if

Code: Select all

sudo ls /sys/kernel/debug/brcmfmac/

Has any results

[aq74i]

Code: Select all

aqsy@aqsy-melon13:~$ sudo rm /etc/modprobe.d/brcmfmac.conf 
[sudo] password for aqsy:                  
rm: cannot remove '/etc/modprobe.d/brcmfmac.conf': No such file or directory

Will reboot now then edit this post.

Code: Select all

aqsy@aqsy-melon13:~$ sudo ls /sys/kernel/debug/brcmfmac/
[sudo] password for aqsy:                  
ls: cannot access '/sys/kernel/debug/brcmfmac/': No such file or directory

[aq74i]

Today I got a usb wifi adapter (tp-link Artcher T3U Nano), followed instructions from https://github.com/morrownr/88x2bu-20210702 and viewtopic.php?t=391449, and am now posting from what seems to be a stable, working wifi connection.

The issue wasn't resolved, and if anyone using a MBP13,2 is reading this, there may not be an internal fix available at the present moment. However, external fixes such as ethernet and wifi adapters seem to work.

Thank you everyone for all the help and support!
(Especially JeremyB who was so patient with someone who didn't even know code had to be pasted into the terminal line by line)

Thank you.