we are facing a weird issue. Basically, wpa_supplicant tries to connect to wifi network, and apparently succeeds, but it can get no IP address.
We are using a Raspberry Pi Zero W to generate an hotspot, then connect to it using an app to set up the wifi credentials, so the Pi can connect to a wifi network. Everything works fine, but sometimes if fails and remains in a state where the connection is up, but with no IP. Often, but not every time, it happens after we "reset" the wifi connection and get back to AP mode, using a GPIO value (we are still simulating it via command line, but it should be replaced by a button). When the looping script reads "1" on a certain GPIO for more than 5 seconds, it resets the connection status and reverts back to AP mode.
The "reset" part of the script is the following:
wpa_cli terminate >> $logfile 2>&1
ip addr flush "$wifidev" >> $logfile 2>&1
ip link set dev "$wifidev" down >> $logfile 2>&1
rm -r /var/run/wpa_supplicant >> $logfile 2>&1
ip link set dev "$wifidev" up >> $logfile 2>&1
Then it proceeds to set up the hotspot like this:
ip link set dev "$wifidev" down
ip a add 10.0.0.5/24 brd + dev "$wifidev"
ip link set dev "$wifidev" up
systemctl start dnsmasq
systemctl start hostapd
Where $wifidev is "wlan0".
To connect to the desired network we use the following command:
wpa_supplicant -d -f /tmp/wlanlog -B -i "$wifidev" -c /etc/wpa_supplicant/wpa_supplicant.conf >/dev/null 2>&1
We are not posting the full log of this command because it is too big, but the last part is this, maybe it contains something useful:
wlan0: State: SCANNING -> ASSOCIATING
nl80211: Set wlan0 operstate 0->0 (DORMANT)
netlink: Operstate: ifindex=2 linkmode=-1 (no change), operstate=5 (IF_OPER_DORMANT)
Limit connection to BSSID 1c:b7:2c:82:8b:a8 freq=2462 MHz based on scan results (bssid_set=0)
wlan0: set_disable_max_amsdu: -1
wlan0: set_ampdu_factor: -1
wlan0: set_ampdu_density: -1
wlan0: set_disable_ht40: 0
wlan0: set_disable_sgi: 0
wlan0: set_disable_ldpc: 0
wlan0: Determining shared radio frequencies (max len 1)
wlan0: Shared frequencies (len=0): completed iteration
nl80211: Set mode ifindex 2 iftype 2 (STATION)
nl80211: Unsubscribe mgmt frames handle 0x88fe7ea9 (mode change)
nl80211: Subscribe to mgmt frames with non-AP handle 0x76f620
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=040a
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=040b
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=040c
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=040d
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=090a
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=090b
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=090c
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=090d
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=0409506f9a09
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=7f506f9a09
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=0801
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=040e
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=06
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=0a07
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=0a11
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=1101
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=1102
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x76f620 match=0505
nl80211: Key management set PSK
nl80211: Connect (ifindex=2)
* bssid=1c:b7:2c:82:8b:a8
* bssid_hint=1c:b7:2c:82:8b:a8
* freq=2462
* freq_hint=2462
* SSID - hexdump_ascii(len=9):
72 65 74 65 2d 77 69 66 69 rete-wifi
* IEs - hexdump(len=28): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00 7f 04 00 00 0a 02
* WPA Versions 0x2
* pairwise=0xfac04
* group=0xfac04
* akm=0xfac02
* htcaps - hexdump(len=26): 63 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
* htcaps_mask - hexdump(len=26): 63 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
* vhtcaps - hexdump(len=12): 00 00 00 00 00 00 00 00 00 00 00 00
* vhtcaps_mask - hexdump(len=12): 00 00 00 00 00 00 00 00 00 00 00 00
* Auth Type 0
nl80211: Connect request send successfully
wlan0: Setting authentication timeout: 10 sec 0 usec
EAPOL: External notification - EAP success=0
EAPOL: External notification - EAP fail=0
EAPOL: External notification - portControl=Auto
EAPOL: disable timer tick
RTM_NEWLINK: ifi_index=2 ifname=wlan0 operstate=5 linkmode=1 ifi_family=0 ifi_flags=0x11003 ([UP][LOWER_UP])
RTM_NEWLINK: ifi_index=2 ifname=wlan0 wext ifi_family=0 ifi_flags=0x11003 ([UP][LOWER_UP])
RTM_NEWLINK: ifi_index=2 ifname=wlan0 wext ifi_family=0 ifi_flags=0x11003 ([UP][LOWER_UP])
RTM_NEWLINK: ifi_index=2 ifname=wlan0 wext ifi_family=0 ifi_flags=0x11003 ([UP][LOWER_UP])
nl80211: Ignored event (cmd=46) for foreign interface (ifindex 2 wdev 0x0)
nl80211: Drv Event 46 (NL80211_CMD_CONNECT) received for wlan0
nl80211: Connect event (status=0 ignore_next_local_disconnect=0)
nl80211: Associated on 2462 MHz
nl80211: Associated with 1c:b7:2c:82:8b:a8
nl80211: Operating frequency for the associated BSS from scan results: 2462 MHz
wlan0: Event ASSOC (0) received
wlan0: Association info event
req_ies - hexdump(len=100): 00 09 72 65 74 65 2d 77 69 66 69 01 08 82 84 8b 96 24 30 48 6c 32 04 0c 12 18 60 21 02 05 17 24 02 01 0d 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00 2d 1a 21 00 1f ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 dd 09 00 10 18 02 00 10 00 00 00 6c 00 00 00
resp_ies - hexdump(len=169): 01 08 82 84 8b 96 12 24 48 6c 32 04 0c 18 30 60 2d 1a ee 11 17 ff ff 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3d 16 0b 00 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 dd 1e 00 90 4c 33 ee 11 17 ff ff 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 dd 1a 00 90 4c 34 0b 00 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 4a 0e 14 00 0a 00 2c 01 c8 00 14 00 05 00 19 00 7f 08 00 00 00 01 00 00 00 00 dd 07 00 0c 43 03 00 00 00 00 03 01 00 00 00
WPA: Unrecognized EAPOL-Key Key Data IE - hexdump(len=24): 3d 16 0b 00 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
WPA: Unrecognized EAPOL-Key Key Data IE - hexdump(len=16): 4a 0e 14 00 0a 00 2c 01 c8 00 14 00 05 00 19 00
WPA: Unrecognized EAPOL-Key Key Data IE - hexdump(len=5): 00 03 01 00 00
wlan0: freq=2462 MHz
WPA: set own WPA/RSN IE - hexdump(len=22): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00
FT: Stored MDIE and FTIE from (Re)Association Response - hexdump(len=0):
wlan0: State: ASSOCIATING -> ASSOCIATED
nl80211: Set wlan0 operstate 0->0 (DORMANT)
netlink: Operstate: ifindex=2 linkmode=-1 (no change), operstate=5 (IF_OPER_DORMANT)
wlan0: Associated to a new BSS: BSSID=1c:b7:2c:82:8b:a8
wlan0: Associated with 1c:b7:2c:82:8b:a8
wlan0: WPA: Association event - clear replay counter
wlan0: WPA: Clear old PTK
TDLS: Remove peers on association
EAPOL: External notification - portEnabled=0
EAPOL: External notification - portValid=0
EAPOL: External notification - EAP success=0
EAPOL: External notification - portEnabled=1
EAPOL: SUPP_PAE entering state CONNECTING
EAPOL: enable timer tick
EAPOL: SUPP_BE entering state IDLE
wlan0: Setting authentication timeout: 10 sec 0 usec
wlan0: Cancelling scan request
WMM AC: Missing U-APSD configuration
nl80211: Drv Event 36 (NL80211_CMD_REG_CHANGE) received for p2p-dev-wlan0
nl80211: Regulatory domain change
* initiator=3
* type=0
* alpha2=DE
p2p-dev-wlan0: Event CHANNEL_LIST_CHANGED (28) received
p2p-dev-wlan0: CTRL-EVENT-REGDOM-CHANGE init=COUNTRY_IE type=COUNTRY alpha2=DE
nl80211: Regulatory information - country=DE (DFS-ETSI)
nl80211: 2400-2483 @ 40 MHz 20 mBm
nl80211: 5150-5250 @ 80 MHz 20 mBm (no outdoor)
nl80211: 5250-5350 @ 80 MHz 20 mBm (no outdoor) (DFS)
nl80211: 5470-5725 @ 160 MHz 26 mBm (DFS)
nl80211: 5725-5875 @ 80 MHz 13 mBm
nl80211: 57000-66000 @ 2160 MHz 40 mBm
nl80211: Added 802.11b mode based on 802.11g information
P2P: Add operating class 81
P2P: Channels - hexdump(len=13): 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d
P2P: Update channel list
P2P: channels: 81:1,2,3,4,5,6,7,8,9,10,11,12,13
P2P: cli_channels:
wlan0: Updating hw mode
nl80211: Regulatory information - country=DE (DFS-ETSI)
nl80211: 2400-2483 @ 40 MHz 20 mBm
nl80211: 5150-5250 @ 80 MHz 20 mBm (no outdoor)
nl80211: 5250-5350 @ 80 MHz 20 mBm (no outdoor) (DFS)
nl80211: 5470-5725 @ 160 MHz 26 mBm (DFS)
nl80211: 5725-5875 @ 80 MHz 13 mBm
nl80211: 57000-66000 @ 2160 MHz 40 mBm
nl80211: Added 802.11b mode based on 802.11g information
EAPOL: disable timer tick
l2_packet_receive: src=1c:b7:2c:82:8b:a8 len=99
wlan0: RX EAPOL from 1c:b7:2c:82:8b:a8
wlan0: Setting authentication timeout: 10 sec 0 usec
wlan0: IEEE 802.1X RX: version=1 type=3 length=95
wlan0: EAPOL-Key type=2
wlan0: key_info 0x8a (ver=2 keyidx=0 rsvd=0 Pairwise Ack)
wlan0: key_length=16 key_data_length=0
replay_counter - hexdump(len=8): 00 00 00 00 00 00 00 01
key_nonce - hexdump(len=32): 1d 74 c3 e8 c3 85 30 55 4f 3c 2d 42 b5 c5 69 31 c5 59 98 fe 6b 6e 3a a4 15 6a 3e e6 51 3b f7 ff
key_iv - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
key_rsc - hexdump(len=8): 00 00 00 00 00 00 00 00
key_id (reserved) - hexdump(len=8): 00 00 00 00 00 00 00 00
key_mic - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
wlan0: State: ASSOCIATED -> 4WAY_HANDSHAKE
wlan0: WPA: RX message 1 of 4-Way Handshake from 1c:b7:2c:82:8b:a8 (ver=2)
RSN: msg 1/4 key data - hexdump(len=0):
WPA: Renewed SNonce - hexdump(len=32): ca a8 bf 5e 6e 4c 40 0e a8 96 30 5d 2a e9 7f a8 e3 a8 84 b3 bd 2f 9e 57 1d 56 37 b3 47 61 86 81
WPA: PTK derivation - A1=b8:27:eb:bc:71:cd A2=1c:b7:2c:82:8b:a8
WPA: Nonce1 - hexdump(len=32): ca a8 bf 5e 6e 4c 40 0e a8 96 30 5d 2a e9 7f a8 e3 a8 84 b3 bd 2f 9e 57 1d 56 37 b3 47 61 86 81
WPA: Nonce2 - hexdump(len=32): 1d 74 c3 e8 c3 85 30 55 4f 3c 2d 42 b5 c5 69 31 c5 59 98 fe 6b 6e 3a a4 15 6a 3e e6 51 3b f7 ff
WPA: PMK - hexdump(len=32): [REMOVED]
WPA: PTK - hexdump(len=48): [REMOVED]
WPA: KCK - hexdump(len=16): [REMOVED]
WPA: KEK - hexdump(len=16): [REMOVED]
WPA: TK - hexdump(len=16): [REMOVED]
WPA: WPA IE for msg 2/4 - hexdump(len=22): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00
WPA: Replay Counter - hexdump(len=8): 00 00 00 00 00 00 00 01
wlan0: WPA: Sending EAPOL-Key 2/4
WPA: KCK - hexdump(len=16): [REMOVED]
WPA: Derived Key MIC - hexdump(len=16): fa 98 eb eb 8a 88 d5 59 c8 52 86 5b 8e 8f a3 8a
l2_packet_receive: src=1c:b7:2c:82:8b:a8 len=155
wlan0: RX EAPOL from 1c:b7:2c:82:8b:a8
wlan0: IEEE 802.1X RX: version=1 type=3 length=151
wlan0: EAPOL-Key type=2
wlan0: key_info 0x13ca (ver=2 keyidx=0 rsvd=0 Pairwise Install Ack MIC Secure Encr)
wlan0: key_length=16 key_data_length=56
replay_counter - hexdump(len=8): 00 00 00 00 00 00 00 02
key_nonce - hexdump(len=32): 1d 74 c3 e8 c3 85 30 55 4f 3c 2d 42 b5 c5 69 31 c5 59 98 fe 6b 6e 3a a4 15 6a 3e e6 51 3b f7 ff
key_iv - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
key_rsc - hexdump(len=8): 5c c0 00 00 00 00 00 00
key_id (reserved) - hexdump(len=8): 00 00 00 00 00 00 00 00
key_mic - hexdump(len=16): d6 37 5c 54 44 b3 7a 75 f9 02 f8 bb 81 69 d8 b1
RSN: encrypted key data - hexdump(len=56): c9 f7 31 9a 1a c7 a0 2e db 70 32 b0 3a 58 8a 40 ae 36 5b c8 f6 c8 af 97 1a 87 ca 1d 65 3c 08 1c d5 1e 00 75 08 82 32 de 4a 87 bd 21 57 9b 7b 83 a1 09 b5 4e 8a f1 3d 75
WPA: decrypted EAPOL-Key key data - hexdump(len=48): [REMOVED]
wlan0: State: 4WAY_HANDSHAKE -> 4WAY_HANDSHAKE
wlan0: WPA: RX message 3 of 4-Way Handshake from 1c:b7:2c:82:8b:a8 (ver=2)
WPA: IE KeyData - hexdump(len=48): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00 dd 16 00 0f ac 01 02 00 ba c1 9b d0 3b df 16 16 7e ad e3 a7 84 d3 40 84 dd 00
WPA: RSN IE in EAPOL-Key - hexdump(len=22): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00
WPA: GTK in EAPOL-Key - hexdump(len=24): [REMOVED]
wlan0: WPA: Sending EAPOL-Key 4/4
WPA: KCK - hexdump(len=16): [REMOVED]
WPA: Derived Key MIC - hexdump(len=16): 54 71 58 ef b2 7c 5c 17 b9 c7 7e a7 67 35 33 05
wlan0: WPA: Installing PTK to the driver
wpa_driver_nl80211_set_key: ifindex=2 (wlan0) alg=3 addr=0x76fd8c key_idx=0 set_tx=1 seq_len=6 key_len=16
nl80211: KEY_DATA - hexdump(len=16): [REMOVED]
nl80211: KEY_SEQ - hexdump(len=6): 00 00 00 00 00 00
addr=1c:b7:2c:82:8b:a8
EAPOL: External notification - portValid=1
wlan0: State: 4WAY_HANDSHAKE -> GROUP_HANDSHAKE
RSN: received GTK in pairwise handshake - hexdump(len=18): [REMOVED]
WPA: Group Key - hexdump(len=16): [REMOVED]
wlan0: WPA: Installing GTK to the driver (keyidx=2 tx=0 len=16)
WPA: RSC - hexdump(len=6): 5c c0 00 00 00 00
wpa_driver_nl80211_set_key: ifindex=2 (wlan0) alg=3 addr=0x14a510 key_idx=2 set_tx=0 seq_len=6 key_len=16
nl80211: KEY_DATA - hexdump(len=16): [REMOVED]
nl80211: KEY_SEQ - hexdump(len=6): 5c c0 00 00 00 00
broadcast key
wlan0: WPA: Key negotiation completed with 1c:b7:2c:82:8b:a8 [PTK=CCMP GTK=CCMP]
wlan0: Cancelling authentication timeout
wlan0: State: GROUP_HANDSHAKE -> COMPLETED
wlan0: Radio work 'connect'@0x784470 done in 0.386009 seconds
wlan0: CTRL-EVENT-CONNECTED - Connection to 1c:b7:2c:82:8b:a8 completed [id=0 id_str=]
nl80211: Set wlan0 operstate 0->1 (UP)
netlink: Operstate: ifindex=2 linkmode=-1 (no change), operstate=6 (IF_OPER_UP)
EAPOL: External notification - portValid=1
EAPOL: External notification - EAP success=1
EAPOL: SUPP_PAE entering state AUTHENTICATING
EAPOL: SUPP_BE entering state SUCCESS
EAP: EAP entering state DISABLED
EAPOL: SUPP_PAE entering state AUTHENTICATED
EAPOL: Supplicant port status: Authorized
nl80211: Set supplicant port authorized for 1c:b7:2c:82:8b:a8
EAPOL: SUPP_BE entering state IDLE
EAPOL authentication completed - result=SUCCESS
nl80211: Set rekey offload
nl80211: Driver does not support rekey offload
RTM_NEWLINK: ifi_index=2 ifname=wlan0 operstate=6 linkmode=1 ifi_family=0 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP])
EAPOL: startWhen --> 0
EAPOL: disable timer tick
wlan0: Control interface command 'STATUS'
EAPOL: EAP Session-Id not available
wlan0: Control interface command 'STATUS'
EAPOL: EAP Session-Id not available
wlan0: Control interface command 'STATUS'
EAPOL: EAP Session-Id not available
When this situation happens, we can revert the Pi to AP mode, which works fine, but every attempt to connect to a wifi network generates the same result - connected, but no IP address.
Moreover, when this happens, if we reboot the Pi leaving the wifi config inside /etc/wpa_supplicant/wpa_supplicant.con, it connects fine and everything works - reset included! And it suddenly stops giving the problem, even reverting to AP and reconnecting multiple times in a row.
This is the output of wpa_cli -i wlan0 status when the Pi is correctly connected to the Wifi network:
bssid=1c:b7:2c:82:8b:a8
freq=2462
ssid=rete-wifi
id=0
mode=station
pairwise_cipher=CCMP
group_cipher=CCMP
key_mgmt=WPA2-PSK
wpa_state=COMPLETED
ip_address=192.168.1.7
p2p_device_address=ba:27:eb:bc:71:cd
address=b8:27:eb:bc:71:cd
uuid=c557c4b6-f4ea-53fc-a3c4-95bd1563665e
This is the output of the same command when the "no-IP" situation verifies:
bssid=1c:b7:2c:82:8b:a8
freq=2462
ssid=rete-wifi
id=0
mode=station
pairwise_cipher=CCMP
group_cipher=CCMP
key_mgmt=WPA2-PSK
wpa_state=COMPLETED
p2p_device_address=ba:27:eb:bc:71:cd
address=b8:27:eb:bc:71:cd
uuid=c557c4b6-f4ea-53fc-a3c4-95bd1563665e
/etc/network/interfaces:
# interfaces(5) file used by ifup(8) and ifdown(8)
# Please note that this file is written to be used with dhcpcd
# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
/etc/dhcpcd.conf
# A sample configuration for dhcpcd.
# See dhcpcd.conf(5) for details.
# Allow users of this group to interact with dhcpcd via the control socket.
#controlgroup wheel
# Inform the DHCP server of our hostname for DDNS.
hostname
# Use the hardware address of the interface for the Client ID.
clientid
# or
# Use the same DUID + IAID as set in DHCPv6 for DHCPv4 ClientID as per RFC4361.
# Some non-RFC compliant DHCP servers do not reply with this set.
# In this case, comment out duid and enable clientid above.
#duid
# Persist interface configuration when dhcpcd exits.
persistent
# Rapid commit support.
# Safe to enable by default because it requires the equivalent option set
# on the server to actually work.
option rapid_commit
# A list of options to request from the DHCP server.
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
# Most distributions have NTP support.
option ntp_servers
# Respect the network MTU. This is applied to DHCP routes.
option interface_mtu
# A ServerID is required by RFC2131.
require dhcp_server_identifier
# Generate Stable Private IPv6 Addresses instead of hardware based ones
slaac private
# Example static IP configuration:
#interface eth0
#static ip_address=192.168.0.10/24
#static ip6_address=fd51:42f8:caae:d92e::ff/64
#static routers=192.168.0.1
#static domain_name_servers=192.168.0.1 8.8.8.8 fd51:42f8:caae:d92e::1
# It is possible to fall back to a static IP if DHCP fails:
# define static profile
#profile static_eth0
#static ip_address=192.168.1.23/24
#static routers=192.168.1.1
#static domain_name_servers=192.168.1.1
# fallback to static profile on eth0
#interface eth0
#fallback static_eth0
/etc/wpa_supplicant/wpa_supplicant.conf (the lines between the commented lines are script-generated):
country=GB
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
#===AUTOCONFIG===
network={
ssid="someSsidName"
psk="somePassword"
}
#===AUTOCONFIG===
We tried connecting to both a broadband router and an hotspot generated using an iPhone, but nothing changed so i would exclude network issues like dhcp not working.
Any idea about some log/line/file/config we could check to avoid this behaviour?
Thanks.
wpa_supplicantdoes NOT get the IP address (this is normally done bydhcpcd). If you are trying to change modes you need to restart!dhcp serversays? Do you seeDHCP_REQUESTSandDHCP_OFFER? Maybe there are simply no more free ip addresses?