WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

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enzo53
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WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by enzo53 » Thu Aug 22, 2019 4:44 pm

Buongiorno a tutti, ho deciso di installare Mint 19.2 Cinnamon sul mio vecchio portatile PakardBell. Purtroppo non riesco a connettermi alla rete wifi di casa. Ho provato anche con l'hotspot del mio cellulare ma nulla da fare. Abbandonato il vecchio XP un anno fa ho installato win10 lite, ma era troppo lento tanto da abbandonare il pc fino a quando tre giorni fa ho deciso di sperimentare Mint, però non ne vuole sapere di connettersi al router di casa (fibra Tiscali da tre mesi).
Ho letto di altri con problemi analoghi ma non proprio uguali alla mia situazione e non vorrei pasticciare. Incollo di seguito le informazioni che di solito vengono chieste e confido nel vostro aiuto:

pier@pier-T12J:~$ inxi -Fxz
System:
Host: pier-T12J Kernel: 4.15.0-54-generic i686 bits: 32 compiler: gcc
v: 7.4.0 Desktop: Cinnamon 4.2.3 Distro: Linux Mint 19.2 Tina
base: Ubuntu 18.04 bionic
Machine:
Type: Laptop System: Packard Bell BV product: T12J v: PB63G00006
serial: <filter>
Mobo: Packard Bell BV model: T12J v: 1.0 serial: <filter>
BIOS: American Megatrends v: T12JNC.202 date: 07/05/2006
CPU:
Topology: Dual Core model: Intel T2050 bits: 32 type: MCP arch: M Yonah
rev: 8 L2 cache: 2048 KiB
flags: nx pae sse sse2 sse3 bogomips: 6383
Speed: 876 MHz min/max: 798/1596 MHz Core speeds (MHz): 1: 909 2: 814
Graphics:
Device-1: NVIDIA G72M [Quadro NVS 110M/GeForce Go 7300]
vendor: Packard Bell B.V. driver: nouveau v: kernel bus ID: 01:00.0
Display: x11 server: X.Org 1.19.6 driver: nouveau
unloaded: fbdev,modesetting,vesa resolution: 1280x800~60Hz
OpenGL: renderer: NV46 v: 2.1 Mesa 19.0.2 direct render: Yes
Audio:
Device-1: Intel NM10/ICH7 Family High Definition Audio
vendor: Packard Bell B.V. driver: snd_hda_intel v: kernel bus ID: 00:1b.0
Sound Server: ALSA v: k4.15.0-54-generic
Network:
Device-1: Intel PRO/Wireless 3945ABG [Golan] Network driver: iwl3945
v: in-tree:s port: ffa0 bus ID: 03:00.0
IF: wlp3s0 state: down mac: <filter>
Device-2: Realtek RTL-8100/8101L/8139 PCI Fast Ethernet Adapter
vendor: Packard Bell B.V. driver: 8139too v: 0.9.28 port: d800
bus ID: 06:07.0
IF: enp6s7 state: down mac: <filter>
Drives:
Local Storage: total: 156.51 GiB used: 14.52 GiB (9.3%)
ID-1: /dev/sda vendor: Samsung model: HM160HC size: 149.05 GiB
ID-2: /dev/sdb type: USB vendor: SanDisk model: Cruzer Edge size: 7.45 GiB
Partition:
ID-1: / size: 145.71 GiB used: 7.37 GiB (5.1%) fs: ext4 dev: /dev/sda1
Sensors:
System Temperatures: cpu: 48.0 C mobo: N/A gpu: nouveau temp: 71 C
Fan Speeds (RPM): N/A
Info:
Processes: 169 Uptime: 12m Memory: 2.46 GiB used: 452.7 MiB (18.0%)
Init: systemd runlevel: 5 Compilers: gcc: 7.4.0 Shell: bash v: 4.4.19
inxi: 3.0.32
pier@pier-T12J:~$ sudo rfkill list all
[sudo] password for pier:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
pier@pier-T12J:~$ ^C
pier@pier-T12J:~$

sleeper12
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Re: WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by sleeper12 » Thu Aug 22, 2019 9:38 pm

Vedi se la soluzione qui funziona:
viewtopic.php?f=53&t=280444&p=1551629&h ... G#p1551629

Cambia l'ultimo comando lì da wlp5s0 a wlp3s0

enzo53
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Re: WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by enzo53 » Fri Aug 23, 2019 8:51 am

Ok, stasera ci provo

sleeper12
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Re: WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by sleeper12 » Fri Aug 23, 2019 11:13 am

Assicurati solo di poter annullare qualsiasi cosa tu possa fare nel caso in cui non funzioni. Avere Timeshift impostato in anticipo.

enzo53
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Re: WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by enzo53 » Fri Aug 23, 2019 5:57 pm

Dopo il comando persiste il messaggio di connessione non riuscita. Di seguito la risposta del terminale:
pier@pier-T12J:~$ sudo iw dev wlp3s0 set power_safe off
[sudo] password for pier:
Usage: iw [options] command
Options:
--debug enable netlink debugging
--version show version (4.14)
Commands:
help [command]
Print usage for all or a specific command, e.g.
"help wowlan" or "help wowlan enable".

event [-t|-r] [-f]
Monitor events from the kernel.
-t - print timestamp
-r - print relative timstamp
-f - print full frame for auth/assoc etc.

features


commands
list all known commands and their decimal & hex value

phy
list
List all wireless devices and their capabilities.

phy <phyname> info
Show capabilities for the specified wireless device.

dev <devname> cac channel <channel> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz]
dev <devname> cac freq <freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz]
dev <devname> cac freq <control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]]
dev <devname> cac trigger channel <channel> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz]
dev <devname> cac trigger freq <frequency> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz]
dev <devname> cac trigger freq <frequency> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]]
Start or trigger a channel availability check (CAC) looking to look for
radars on the given channel.

phy <phyname> channels
Show available channels.

dev <devname> switch channel <channel> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz] [beacons <count>] [block-tx]
dev <devname> switch freq <freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz] [beacons <count>] [block-tx]
dev <devname> switch freq <control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]] [beacons <count>] [block-tx]
Switch the operating channel by sending a channel switch announcement (CSA).

dev
List all network interfaces for wireless hardware.

dev <devname> info
Show information for this interface.

dev <devname> del
Remove this virtual interface

dev <devname> interface add <name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*] [addr <mac-addr>]
phy <phyname> interface add <name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*] [addr <mac-addr>]
Add a new virtual interface with the given configuration.
Valid interface types are: managed, ibss, monitor, mesh, wds.

The flags are only used for monitor interfaces, valid flags are:
none: no special flags
fcsfail: show frames with FCS errors
control: show control frames
otherbss: show frames from other BSSes
cook: use cooked mode
active: use active mode (ACK incoming unicast packets)
mumimo-groupid <GROUP_ID>: use MUMIMO according to a group id
mumimo-follow-mac <MAC_ADDRESS>: use MUMIMO according to a MAC address

The mesh_id is used only for mesh mode.

dev <devname> ibss join <SSID> <freq in MHz> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>] [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] [key d:0:abcde]
Join the IBSS cell with the given SSID, if it doesn't exist create
it on the given frequency. When fixed frequency is requested, don't
join/create a cell on a different frequency. When a fixed BSSID is
requested use that BSSID and do not adopt another cell's BSSID even
if it has higher TSF and the same SSID. If an IBSS is created, create
it with the specified basic-rates, multicast-rate and beacon-interval.

dev <devname> ibss leave
Leave the current IBSS cell.

dev <devname> station dump [-v]
List all stations known, e.g. the AP on managed interfaces

dev <devname> station set <MAC address> mesh_power_mode <active|light|deep>
Set link-specific mesh power mode for this station

dev <devname> station set <MAC address> vlan <ifindex>
Set an AP VLAN for this station.

dev <devname> station set <MAC address> plink_action <open|block>
Set mesh peer link action for this station (peer).

dev <devname> station del <MAC address> [subtype <subtype>] [reason-code <code>]
Remove the given station entry (use with caution!)
Example subtype values: 0xA (disassociation), 0xC (deauthentication)

dev <devname> station get <MAC address>
Get information for a specific station.

dev <devname> survey dump
List all gathered channel survey data

dev <devname> ocb leave
Leave the OCB mode network.

dev <devname> ocb join <freq in MHz> <5MHz|10MHz>
Join the OCB mode network.

dev <devname> mesh leave
Leave a mesh.

dev <devname> mesh join <mesh ID> [[freq <freq in MHz> <NOHT|HT20|HT40+|HT40-|80MHz>] [basic-rates <rate in Mbps,rate2,...>]], [mcast-rate <rate in Mbps>] [beacon-interval <time in TUs>] [dtim-period <value>] [vendor_sync on|off] [<param>=<value>]*
Join a mesh with the given mesh ID with frequency, basic-rates,
mcast-rate and mesh parameters. Basic-rates are applied only if
frequency is provided.

dev <devname> mpath dump
List known mesh paths.

dev <devname> mpath set <destination MAC address> next_hop <next hop MAC address>
Set an existing mesh path's next hop.

dev <devname> mpath new <destination MAC address> next_hop <next hop MAC address>
Create a new mesh path (instead of relying on automatic discovery).

dev <devname> mpath del <MAC address>
Remove the mesh path to the given node.

dev <devname> mpath get <MAC address>
Get information on mesh path to the given node.

dev <devname> mpp dump
List known mesh proxy paths.

dev <devname> mpp get <MAC address>
Get information on mesh proxy path to the given node.

dev <devname> scan [-u] [freq <freq>*] [ies <hex as 00:11:..>] [meshid <meshid>] [lowpri,flush,ap-force] [randomise[=<addr>/<mask>]] [ssid <ssid>*|passive]
Scan on the given frequencies and probe for the given SSIDs
(or wildcard if not given) unless passive scanning is requested.
If -u is specified print unknown data in the scan results.
Specified (vendor) IEs must be well-formed.

dev <devname> scan sched_stop
Stop an ongoing scheduled scan.

dev <devname> scan sched_start [interval <in_msecs> | scan_plans [<interval_secs:iterations>*] <interval_secs>] [delay <in_secs>] [freqs <freq>+] [matches [ssid <ssid>]+]] [active [ssid <ssid>]+|passive] [randomise[=<addr>/<mask>]]
Start a scheduled scan at the specified interval on the given frequencies
with probing for the given SSIDs (or wildcard if not given) unless passive
scanning is requested. If matches are specified, only matching results
will be returned.

dev <devname> scan abort
Abort ongoing scan

dev <devname> scan trigger [freq <freq>*] [ies <hex as 00:11:..>] [meshid <meshid>] [lowpri,flush,ap-force] [randomise[=<addr>/<mask>]] [ssid <ssid>*|passive]
Trigger a scan on the given frequencies with probing for the given
SSIDs (or wildcard if not given) unless passive scanning is requested.

dev <devname> scan dump [-u]
Dump the current scan results. If -u is specified, print unknown
data in scan results.

phy <phyname> reg get
Print out the devices' current regulatory domain information.

reg get
Print out the kernel's current regulatory domain information.

reg set <ISO/IEC 3166-1 alpha2>
Notify the kernel about the current regulatory domain.

dev <devname> auth <SSID> <bssid> <type:open|shared> <freq in MHz> [key 0:abcde d:1:6162636465]
Authenticate with the given network.


dev <devname> connect [-w] <SSID> [<freq in MHz>] [<bssid>] [key 0:abcde d:1:6162636465] [mfp:req/opt/no]
Join the network with the given SSID (and frequency, BSSID).
With -w, wait for the connect to finish or fail.

dev <devname> disconnect
Disconnect from the current network.

dev <devname> link
Print information about the current link, if any.

dev <devname> offchannel <freq> <duration>
Leave operating channel and go to the given channel for a while.

dev <devname> cqm rssi <threshold|off> [<hysteresis>]
Set connection quality monitor RSSI threshold.


phy <phyname> wowlan show
Show WoWLAN status.

phy <phyname> wowlan disable
Disable WoWLAN.

phy <phyname> wowlan enable [any] [disconnect] [magic-packet] [gtk-rekey-failure] [eap-identity-request] [4way-handshake] [rfkill-release] [net-detect [interval <in_msecs> | scan_plans [<interval_secs:iterations>*] <interval_secs>] [delay <in_secs>] [freqs <freq>+] [matches [ssid <ssid>]+]] [active [ssid <ssid>]+|passive] [randomise[=<addr>/<mask>]]] [tcp <config-file>] [patterns [offset1+]<pattern1> ...]
Enable WoWLAN with the given triggers.
Each pattern is given as a bytestring with '-' in places where any byte
may be present, e.g. 00:11:22:-:44 will match 00:11:22:33:44 and
00:11:22:33:ff:44 etc.
Offset and pattern should be separated by '+', e.g. 18+43:34:00:12 will match '43:34:00:12' after 18 bytes of offset in Rx packet.

The TCP configuration file contains:
source=ip[:port]
dest=ip:port@mac
data=<hex data packet>
data.interval=seconds
[wake=<hex packet with masked out bytes indicated by '-'>]
[data.seq=len,offset[,start]]
[data.tok=len,offset,<token stream>]

Net-detect configuration example:
iw phy0 wowlan enable net-detect interval 5000 delay 30 freqs 2412 2422 matches ssid foo ssid bar

phy <phyname> coalesce show
Show coalesce status.

phy <phyname> coalesce disable
Disable coalesce.

phy <phyname> coalesce enable <config-file>
Enable coalesce with given configuration.
The configuration file contains coalesce rules:
delay=<delay>
condition=<condition>
patterns=<[offset1+]<pattern1>,<[offset2+]<pattern2>,...>
delay=<delay>
condition=<condition>
patterns=<[offset1+]<pattern1>,<[offset2+]<pattern2>,...>
...
delay: maximum coalescing delay in msec.
condition: 1/0 i.e. 'not match'/'match' the patterns
patterns: each pattern is given as a bytestring with '-' in
places where any byte may be present, e.g. 00:11:22:-:44 will
match 00:11:22:33:44 and 00:11:22:33:ff:44 etc. Offset and
pattern should be separated by '+', e.g. 18+43:34:00:12 will
match '43:34:00:12' after 18 bytes of offset in Rx packet.


dev <devname> roc start <freq> <time in ms>


wdev <idx> p2p stop


wdev <idx> p2p start


dev <devname> vendor recvbin <oui> <subcmd> <filename|-|hex data>


dev <devname> vendor recv <oui> <subcmd> <filename|-|hex data>


dev <devname> vendor send <oui> <subcmd> <filename|-|hex data>


dev <devname> mgmt dump frame <type as hex ab> <pattern as hex ab:cd:..> [frame <type> <pattern>]* [count <frames>]
Register for receiving certain mgmt frames and print them.
Frames are selected by their type and pattern containing
the first several bytes of the frame that should match.

Example: iw dev wlan0 mgmt dump frame 40 00 frame 40 01:02 count 10


dev <devname> ap stop
Stop AP functionality


dev <devname> ap start
<SSID> <control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]] <beacon interval in TU> <DTIM period> [hidden-ssid|zeroed-ssid] head <beacon head in hexadecimal> [tail <beacon tail in hexadecimal>] [key0:abcde d:1:6162636465]


phy <phyname> set antenna <bitmap> | all | <tx bitmap> <rx bitmap>
Set a bitmap of allowed antennas to use for TX and RX.
The driver may reject antenna configurations it cannot support.

dev <devname> set txpower <auto|fixed|limit> [<tx power in mBm>]
Specify transmit power level and setting type.

phy <phyname> set txpower <auto|fixed|limit> [<tx power in mBm>]
Specify transmit power level and setting type.

phy <phyname> set distance <auto|distance>
Enable ACK timeout estimation algorithm (dynack) or set appropriate
coverage class for given link distance in meters.
To disable dynack set valid value for coverage class.
Valid values: 0 - 114750

phy <phyname> set coverage <coverage class>
Set coverage class (1 for every 3 usec of air propagation time).
Valid values: 0 - 255.

phy <phyname> set netns { <pid> | name <nsname> }
Put this wireless device into a different network namespace:
<pid> - change network namespace by process id
<nsname> - change network namespace by name from /run/netns
or by absolute path (man ip-netns)


phy <phyname> set retry [short <limit>] [long <limit>]
Set retry limit.

phy <phyname> set rts <rts threshold|off>
Set rts threshold.

phy <phyname> set frag <fragmentation threshold|off>
Set fragmentation threshold.

dev <devname> set channel <channel> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz]
phy <phyname> set channel <channel> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz]
dev <devname> set freq <freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz]
dev <devname> set freq <control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]]
phy <phyname> set freq <freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz]
phy <phyname> set freq <control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]]
Set frequency/channel the hardware is using, including HT
configuration.

phy <phyname> set name <new name>
Rename this wireless device.

dev <devname> set mcast_rate <rate in Mbps>
Set the multicast bitrate.

dev <devname> set peer <MAC address>
Set interface WDS peer.

dev <devname> set noack_map <map>
Set the NoAck map for the TIDs. (0x0009 = BE, 0x0006 = BK, 0x0030 = VI, 0x00C0 = VO)

dev <devname> set 4addr <on|off>
Set interface 4addr (WDS) mode.

dev <devname> set type <type>
Set interface type/mode.
Valid interface types are: managed, ibss, monitor, mesh, wds.

dev <devname> set meshid <meshid>
dev <devname> set monitor <flag>*
Set monitor flags. Valid flags are:
none: no special flags
fcsfail: show frames with FCS errors
control: show control frames
otherbss: show frames from other BSSes
cook: use cooked mode
active: use active mode (ACK incoming unicast packets)
mumimo-groupid <GROUP_ID>: use MUMIMO according to a group id
mumimo-follow-mac <MAC_ADDRESS>: use MUMIMO according to a MAC address

dev <devname> set mesh_param <param>=<value> [<param>=<value>]*
Set mesh parameter (run command without any to see available ones).

dev <devname> set power_save <on|off>
Set power save state to on or off.

dev <devname> set bitrates [legacy-<2.4|5> <legacy rate in Mbps>*] [ht-mcs-<2.4|5> <MCS index>*] [vht-mcs-<2.4|5> <NSS:MCSx,MCSy... | NSS:MCSx-MCSy>*] [sgi-2.4|lgi-2.4] [sgi-5|lgi-5]
Sets up the specified rate masks.
Not passing any arguments would clear the existing mask (if any).

dev <devname> get mesh_param [<param>]
Retrieve mesh parameter (run command without any to see available ones).

dev <devname> get power_save <param>
Retrieve power save state.


Commands that use the netdev ('dev') can also be given the
'wdev' instead to identify the device.

You can omit the 'phy' or 'dev' if the identification is unique,
e.g. "iw wlan0 info" or "iw phy0 info". (Don't when scripting.)

Do NOT screenscrape this tool, we don't consider its output stable.

pier@pier-T12J:~$

enzo53
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Re: WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by enzo53 » Fri Aug 23, 2019 6:04 pm

Non so se centra qualcosa, tre mesi fa quando ho installato il nuovo router tiscali ho attivato solo la banda 2.4 Ghz. O almeno così credevo di aver fatto visto che gli altri pc e cellulari vedono anche quella di 5 Ghz. Io sto tentando ovviamente con la rete wifi da 2.4 inserendo la password ad hoc. Anche col cavo di rete niente connessione.
Boh

sleeper12
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Re: WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by sleeper12 » Fri Aug 23, 2019 9:03 pm

Hai eseguito questi comandi?

Code: Select all

 echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf      
sudo modprobe -rfv iwlwifi
sudo modprobe -v iwlwifi 
Temo che ciò vada oltre le mie capacità. Speriamo che qualcun altro possa aiutare. In caso contrario, puoi sempre provare un adattatore wifi USB.

enzo53
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Re: WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by enzo53 » Mon Aug 26, 2019 11:46 am

pier@pier-T12J:~$ echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf
[sudo] password for pier:
options iwlwifi 11n_disable=1
pier@pier-T12J:~$ sudo modprobe -rfv iwlwifi
pier@pier-T12J:~$ m1nt
m1nt: command not found
pier@pier-T12J:~$ sudo modprobe -v iwlwifi
insmod /lib/modules/4.15.0-54-generic/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko 11n_disable=1
pier@pier-T12J:~$ ^C
pier@pier-T12J:~$

ho ripetuto il secondo comando e la risposta è:
rmmod iwlwifi

enzo53
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Re: WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by enzo53 » Mon Aug 26, 2019 12:09 pm

La cosa tragica per me è impartire comandi di cui non conosco il significato.
Dai rapporti che ho postato emerge qualche indicazione o comunque qualcosa di significativo?
Sapreste indicarmi un manuale semplice e chiaro, magari anche sintetico, dove poter iniziare l'apprendimento dell'abc di linux.
Grazie

sleeper12
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Re: WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by sleeper12 » Mon Aug 26, 2019 12:58 pm

Questo ha funzionato per qualcuno in un altro thread se vuoi provarlo:

Code: Select all

 sudo rmmod -f iwl3945 

Code: Select all

 sudo modprobe iwl3945 disable_hw_scan = 1 
Reboot

In caso contrario, forse questo:
https://www.unixmen.com/wifix-a-simple- ... er-ubuntu/

Questo è tutto quello che ho.

enzo53
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Re: WIFI non connesso - Intel Pro/ wireless 3945ABG (Golan)

Post by enzo53 » Sat Aug 31, 2019 10:35 am

Eccomi, dopo qualche giorno di impegni lavorativi e non.
Ho inserito una chiavetta wifi USB e si è connesso. Poi la ho scollegata per liberare una porta usb e per ritentare con la scheda interna al pc.
Ho poi controllato il settaggio del modem senza trovare nulla di particolare, ho attivato il 5Ghz, ho poi provato a connettere il pc e: si è connesso!
A questo punto credo che la scheda wifi del mio pc semplicemente non supporta il wifi a 2,4Ghz, che sia uno standard più recente?
Comunque direi che è "RISOLTO".

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