Public bug reported:
Beginning in Ubuntu 16.04 and getting worse after upgrading to 16.10, I
can't connect to wifi networks after suspending and resuming my laptop.
I have a Sony Vaio SVP112A1CL with wireless network controller Intel
Corporation Wireless 7260 (rev 6b).
Typically I have to restart NetworkManager to recover from the problem
(sudo systemctl restart NetworkManager). This seemed to be a reliable
way to recover in 16.04, but it doesn't always work in 16.10 and may
require a reboot.
In some related bug reports they requested we run `sudo iw dev wlan0
scan` which resulted initially in an error but after running it a few
times returned successfully. I'll attach the output below. Even though
it did return, the wifi network still was unable to reconnect. I'll try
to grab the errors next time, but if I do it now, I'll lose
connectivity.
$ apt-cache policy network-manager
network-manager:
Installed: 1.2.4-0ubuntu1
Candidate: 1.2.4-0ubuntu1
Version table:
*** 1.2.4-0ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
100 /var/lib/dpkg/status
$ sudo iw dev wlan0 scan
BSS d4:05:98:46:d9:40(on wlan0) -- associated
TSF: 2690064842954 usec (31d, 03:14:24)
freq: 2457
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble ShortSlotTime APSD (0x0c31)
signal: -68.00 dBm
last seen: 3728 ms ago
Information elements from Probe Response frame:
SSID: stevens-2G
Supported rates: 1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0
DS Parameter set: channel 10
ERP: <no flags>
Extended supported rates: 6.0 12.0 24.0 48.0
Country: US Environment: Indoor/Outdoor
Channels [1 - 11] @ 36 dBm
HT capabilities:
Capabilities: 0x1ec
HT20
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT RX MCS rate indexes supported: 0-23
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 10
* secondary channel offset: no secondary
* STA channel width: 20 MHz
* RIFS: 0
* HT protection: no
* non-GF present: 1
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
WPA: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: TKIP CCMP
* Authentication suites: PSK
RSN: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: TKIP CCMP
* Authentication suites: PSK
* Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
BSS Load:
* station count: 5
* channel utilisation: 28/255
* available admission capacity: 31250 [*32us]
Extended capabilities: HT Information Exchange Supported
Country: US Environment: Indoor/Outdoor
Channels [1 - 11] @ 16 dBm
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: bc329e00-1dd8-11b2-8601-d4059846d940
* Manufacturer: Celeno Communication, Inc.
* Model: Celeno Wireless AP 2.4G
* Model Number: CL1800
* Serial Number: 12345678
* Primary Device Type: 6-0050f204-1
* Device name: CELENOAP24G
* Config methods: Label, Display, Keypad
* RF Bands: 0x1
* Unknown TLV (0x1049, 6 bytes): 00 37 2a 00 01 20
BSS 52:f5:da:94:bf:f3(on wlan0)
TSF: 155449958912 usec (1d, 19:10:49)
freq: 2457
beacon interval: 100 TUs
capability: ESS Privacy ShortSlotTime (0x0411)
signal: -66.00 dBm
last seen: 3736 ms ago
Information elements from Probe Response frame:
SSID:
\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00
Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0
DS Parameter set: channel 10
TIM: DTIM Count 1 DTIM Period 2 Bitmap Control 0x0 Bitmap[0] 0x2
ERP: <no flags>
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
HT capabilities:
Capabilities: 0x1ad
RX LDPC
HT20
SM Power Save disabled
RX HT20 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT RX MCS rate indexes supported: 0-15
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 10
* secondary channel offset: no secondary
* STA channel width: 20 MHz
* RIFS: 0
* HT protection: non-HT mixed
* non-GF present: 0
* OBSS non-GF present: 1
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
Extended capabilities: Extended Channel Switching
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Unknown TLV (0x1049, 6 bytes): 00 37 2a 00 01 20
* Device name: Steven's Fire TV stick
* Primary Device Type: 1-0050f204-9
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
P2P: * Group capa: 0x25, Device capa: 0xab
* Unknown TLV (0x03, 6 bytes): f5 da 94 3f f3 00
BSS d4:05:98:46:d9:45(on wlan0)
TSF: 2690065103372 usec (31d, 03:14:25)
freq: 5200
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble APSD (0x0831)
signal: -66.00 dBm
last seen: 3520 ms ago
SSID: stevens
Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0
DS Parameter set: channel 40
Country: US Environment: Indoor/Outdoor
Channels [36 - 64] @ 36 dBm
HT capabilities:
Capabilities: 0x1ee
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT RX MCS rate indexes supported: 0-23, 32
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 40
* secondary channel offset: below
* STA channel width: any
* RIFS: 0
* HT protection: no
* non-GF present: 1
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
BSS Load:
* station count: 8
* channel utilisation: 0/255
* available admission capacity: 31250 [*32us]
Country: US Environment: Indoor/Outdoor
Channels [36 - 64] @ 16 dBm
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: bc329e00-1dd8-11b2-8601-d4059846d945
* Manufacturer: Celeno Communication, Inc.
* Model: Celeno Wireless AP 5G
* Model Number: CL1800
* Serial Number: 12345678
* Primary Device Type: 6-0050f204-1
* Device name: CelenoAP5G
* Config methods: Label, Display, Keypad
* RF Bands: 0x2
* Unknown TLV (0x1049, 6 bytes): 00 37 2a 00 01 20
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1635907
Title:
Can't connect to Wifi network after suspend and resume
Status in network-manager package in Ubuntu:
New
Bug description:
Beginning in Ubuntu 16.04 and getting worse after upgrading to 16.10,
I can't connect to wifi networks after suspending and resuming my
laptop. I have a Sony Vaio SVP112A1CL with wireless network controller
Intel Corporation Wireless 7260 (rev 6b).
Typically I have to restart NetworkManager to recover from the problem
(sudo systemctl restart NetworkManager). This seemed to be a reliable
way to recover in 16.04, but it doesn't always work in 16.10 and may
require a reboot.
In some related bug reports they requested we run `sudo iw dev wlan0
scan` which resulted initially in an error but after running it a few
times returned successfully. I'll attach the output below. Even though
it did return, the wifi network still was unable to reconnect. I'll
try to grab the errors next time, but if I do it now, I'll lose
connectivity.
$ apt-cache policy network-manager
network-manager:
Installed: 1.2.4-0ubuntu1
Candidate: 1.2.4-0ubuntu1
Version table:
*** 1.2.4-0ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
100 /var/lib/dpkg/status
$ sudo iw dev wlan0 scan
BSS d4:05:98:46:d9:40(on wlan0) -- associated
TSF: 2690064842954 usec (31d, 03:14:24)
freq: 2457
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble ShortSlotTime APSD (0x0c31)
signal: -68.00 dBm
last seen: 3728 ms ago
Information elements from Probe Response frame:
SSID: stevens-2G
Supported rates: 1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0
DS Parameter set: channel 10
ERP: <no flags>
Extended supported rates: 6.0 12.0 24.0 48.0
Country: US Environment: Indoor/Outdoor
Channels [1 - 11] @ 36 dBm
HT capabilities:
Capabilities: 0x1ec
HT20
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT RX MCS rate indexes supported: 0-23
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 10
* secondary channel offset: no secondary
* STA channel width: 20 MHz
* RIFS: 0
* HT protection: no
* non-GF present: 1
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
WPA: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: TKIP CCMP
* Authentication suites: PSK
RSN: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: TKIP CCMP
* Authentication suites: PSK
* Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
BSS Load:
* station count: 5
* channel utilisation: 28/255
* available admission capacity: 31250 [*32us]
Extended capabilities: HT Information Exchange Supported
Country: US Environment: Indoor/Outdoor
Channels [1 - 11] @ 16 dBm
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: bc329e00-1dd8-11b2-8601-d4059846d940
* Manufacturer: Celeno Communication, Inc.
* Model: Celeno Wireless AP 2.4G
* Model Number: CL1800
* Serial Number: 12345678
* Primary Device Type: 6-0050f204-1
* Device name: CELENOAP24G
* Config methods: Label, Display, Keypad
* RF Bands: 0x1
* Unknown TLV (0x1049, 6 bytes): 00 37 2a 00 01 20
BSS 52:f5:da:94:bf:f3(on wlan0)
TSF: 155449958912 usec (1d, 19:10:49)
freq: 2457
beacon interval: 100 TUs
capability: ESS Privacy ShortSlotTime (0x0411)
signal: -66.00 dBm
last seen: 3736 ms ago
Information elements from Probe Response frame:
SSID:
\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00
Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0
DS Parameter set: channel 10
TIM: DTIM Count 1 DTIM Period 2 Bitmap Control 0x0 Bitmap[0] 0x2
ERP: <no flags>
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
HT capabilities:
Capabilities: 0x1ad
RX LDPC
HT20
SM Power Save disabled
RX HT20 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT RX MCS rate indexes supported: 0-15
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 10
* secondary channel offset: no secondary
* STA channel width: 20 MHz
* RIFS: 0
* HT protection: non-HT mixed
* non-GF present: 0
* OBSS non-GF present: 1
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
Extended capabilities: Extended Channel Switching
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Unknown TLV (0x1049, 6 bytes): 00 37 2a 00 01 20
* Device name: Steven's Fire TV stick
* Primary Device Type: 1-0050f204-9
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
P2P: * Group capa: 0x25, Device capa: 0xab
* Unknown TLV (0x03, 6 bytes): f5 da 94 3f f3 00
BSS d4:05:98:46:d9:45(on wlan0)
TSF: 2690065103372 usec (31d, 03:14:25)
freq: 5200
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble APSD (0x0831)
signal: -66.00 dBm
last seen: 3520 ms ago
SSID: stevens
Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0
DS Parameter set: channel 40
Country: US Environment: Indoor/Outdoor
Channels [36 - 64] @ 36 dBm
HT capabilities:
Capabilities: 0x1ee
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT RX MCS rate indexes supported: 0-23, 32
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 40
* secondary channel offset: below
* STA channel width: any
* RIFS: 0
* HT protection: no
* non-GF present: 1
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
BSS Load:
* station count: 8
* channel utilisation: 0/255
* available admission capacity: 31250 [*32us]
Country: US Environment: Indoor/Outdoor
Channels [36 - 64] @ 16 dBm
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: bc329e00-1dd8-11b2-8601-d4059846d945
* Manufacturer: Celeno Communication, Inc.
* Model: Celeno Wireless AP 5G
* Model Number: CL1800
* Serial Number: 12345678
* Primary Device Type: 6-0050f204-1
* Device name: CelenoAP5G
* Config methods: Label, Display, Keypad
* RF Bands: 0x2
* Unknown TLV (0x1049, 6 bytes): 00 37 2a 00 01 20
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