Wifi was working stable for a few days now, even when using standby and let running Laptop 8h in Idle.
But today, after 1.5h beeing Idle and screen of, when coming back, Wifi was not working. Waiting 3 mins as before does not help and I needed to disable and enable Wifi adapter in GNOME-Networkmanager to enable Internet and local network-access again. Here is one output from iwconfig in terminal while wifi was not working: " eth0 no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"TEST" Mode:Managed Frequency:2.412 GHz Access Point: 34:31:C4:66:1F:56 Bit Rate=1 Mb/s Tx-Power=22 dBm Retry short limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on Link Quality=50/70 Signal level=-60 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:1 Invalid misc:548 Missed beacon:0 wwan0 no wireless extensions. lo no wireless extensions. " Then I did another output in terminal after disable and enable WIFI adapter: " eth0 no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"TEST" Mode:Managed Frequency:2.412 GHz Access Point: 34:31:C4:66:1F:56 Bit Rate=78 Mb/s Tx-Power=22 dBm Retry short limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on Link Quality=46/70 Signal level=-64 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:25 Missed beacon:0 wwan0 no wireless extensions. lo no wireless extensions. " In both cases Network is connected but in first case it was not working. Maybe the output of lspci -vvnn also helps: " 00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 0b) Subsystem: Lenovo Device [17aa:220c] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx- Latency: 0 Capabilities: <access denied> 00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:220c] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 65 Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M] Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 3000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915 00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller [8086:0a0c] (rev 0b) Subsystem: Lenovo Device [17aa:220c] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 62 Region 0: Memory at f0630000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel 00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC [8086:9c31] (rev 04) (prog-if 30 [XHCI]) Subsystem: Lenovo Device [17aa:220c] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 60 Region 0: Memory at f0620000 (64-bit, non-prefetchable) [size=64K] Capabilities: <access denied> Kernel driver in use: xhci_hcd 00:16.0 Communication controller [0780]: Intel Corporation 8 Series HECI #0 [8086:9c3a] (rev 04) Subsystem: Lenovo Device [17aa:220c] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 59 Region 0: Memory at f0639000 (64-bit, non-prefetchable) [size=32] Capabilities: <access denied> Kernel driver in use: mei_me 00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection I218-LM [8086:155a] (rev 04) Subsystem: Lenovo ThinkPad X240 [17aa:2214] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 66 Region 0: Memory at f0600000 (32-bit, non-prefetchable) [size=128K] Region 1: Memory at f063e000 (32-bit, non-prefetchable) [size=4K] Region 2: I/O ports at 3080 [size=32] Capabilities: <access denied> Kernel driver in use: e1000e 00:1b.0 Audio device [0403]: Intel Corporation 8 Series HD Audio Controller [8086:9c20] (rev 04) Subsystem: Lenovo Device [17aa:220c] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 63 Region 0: Memory at f0634000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel 00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 6 [8086:9c1a] (rev e4) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 Memory behind bridge: f0500000-f05fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport 00:1c.1 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 3 [8086:9c14] (rev e4) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 Memory behind bridge: f0400000-f04fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport 00:1d.0 USB controller [0c03]: Intel Corporation 8 Series USB EHCI #1 [8086:9c26] (rev 04) (prog-if 20 [EHCI]) Subsystem: Lenovo Device [17aa:220c] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 23 Region 0: Memory at f063d000 (32-bit, non-prefetchable) [size=1K] Capabilities: <access denied> Kernel driver in use: ehci-pci 00:1f.0 ISA bridge [0601]: Intel Corporation 8 Series LPC Controller [8086:9c43] (rev 04) Subsystem: Lenovo Device [17aa:220c] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Capabilities: <access denied> Kernel driver in use: lpc_ich 00:1f.2 SATA controller [0106]: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] [8086:9c03] (rev 04) (prog-if 01 [AHCI 1.0]) Subsystem: Lenovo Device [17aa:220c] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 61 Region 0: I/O ports at 30a8 [size=8] Region 1: I/O ports at 30b4 [size=4] Region 2: I/O ports at 30a0 [size=8] Region 3: I/O ports at 30b0 [size=4] Region 4: I/O ports at 3060 [size=32] Region 5: Memory at f063c000 (32-bit, non-prefetchable) [size=2K] Capabilities: <access denied> Kernel driver in use: ahci 00:1f.3 SMBus [0c05]: Intel Corporation 8 Series SMBus Controller [8086:9c22] (rev 04) Subsystem: Lenovo Device [17aa:220c] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin C routed to IRQ 18 Region 0: Memory at f0638000 (64-bit, non-prefetchable) [size=256] Region 4: I/O ports at efa0 [size=32] Kernel driver in use: i801_smbus 02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader [10ec:5227] (rev 01) Subsystem: Lenovo Device [17aa:220c] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 58 Region 0: Memory at f0500000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: rtsx_pci 03:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b2] (rev 83) Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:c270] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 64 Region 0: Memory at f0400000 (64-bit, non-prefetchable) [size=8K] Capabilities: <access denied> Kernel driver in use: iwlwifi " and the loaded kernel moduls: " lsmod Module Size Used by isofs 38965 1 ctr 12927 3 ccm 17577 3 snd_hda_codec_hdmi 45118 1 cdc_mbim 12825 0 hid_generic 12393 0 uvcvideo 79005 0 videobuf2_vmalloc 12816 1 uvcvideo videobuf2_memops 12519 1 videobuf2_vmalloc videobuf2_core 47787 1 uvcvideo v4l2_common 12995 1 videobuf2_core videodev 126451 3 uvcvideo,v4l2_common,videobuf2_core usbhid 44460 0 media 18305 2 uvcvideo,videodev cdc_ncm 26618 1 cdc_mbim hid 102264 2 hid_generic,usbhid usbnet 30844 2 cdc_mbim,cdc_ncm cdc_acm 30362 8 mii 12675 1 usbnet cdc_wdm 17427 1 cdc_mbim joydev 17063 0 pci_stub 12429 1 vboxpci 23077 0 vboxnetadp 25443 0 arc4 12536 2 vboxnetflt 27598 0 vboxdrv 340276 3 vboxnetadp,vboxnetflt,vboxpci nfsd 263032 2 auth_rpcgss 51211 1 nfsd oid_registry 12419 1 auth_rpcgss nfs_acl 12511 1 nfsd nfs 188136 0 lockd 83389 2 nfs,nfsd fscache 45542 1 nfs sunrpc 237402 6 nfs,nfsd,auth_rpcgss,lockd,nfs_acl nls_utf8 12456 2 nls_cp437 16553 1 vfat 17135 1 fat 61986 1 vfat x86_pkg_temp_thermal 12951 0 intel_powerclamp 17159 0 intel_rapl 17356 0 coretemp 12820 0 kvm_intel 139116 0 iTCO_wdt 12831 0 iTCO_vendor_support 12649 1 iTCO_wdt kvm 388635 1 kvm_intel crc32_pclmul 12915 0 ghash_clmulni_intel 12978 0 iwlmvm 137115 0 mac80211 474277 1 iwlmvm aesni_intel 151423 6 aes_x86_64 16719 1 aesni_intel lrw 12757 1 aesni_intel gf128mul 12970 1 lrw glue_helper 12695 1 aesni_intel ablk_helper 12572 1 aesni_intel efi_pstore 12805 1 cryptd 14516 3 ghash_clmulni_intel,aesni_intel,ablk_helper iwlwifi 96547 1 iwlmvm evdev 17445 28 pcspkr 12595 0 psmouse 99249 0 rtsx_pci_ms 16898 0 serio_raw 12849 0 efivars 17257 1 efi_pstore snd_hda_codec_realtek 67127 1 memstick 13696 1 rtsx_pci_ms snd_hda_codec_generic 63181 1 snd_hda_codec_realtek cfg80211 405538 3 iwlwifi,mac80211,iwlmvm mei_me 17941 0 i915 837138 7 lpc_ich 20768 0 mei 74977 1 mei_me shpchp 31121 0 i2c_i801 16965 0 wmi 17339 0 snd_hda_intel 26327 5 snd_hda_controller 26646 1 snd_hda_intel snd_hda_codec 104463 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller drm_kms_helper 49210 1 i915 snd_hwdep 13148 1 snd_hda_codec tpm_tis 17231 0 tpm 31511 1 tpm_tis snd_pcm 88662 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller thinkpad_acpi 69119 1 nvram 13034 1 thinkpad_acpi ac 12715 0 rfkill 18867 4 cfg80211,thinkpad_acpi battery 13356 0 snd_timer 26614 1 snd_pcm drm 249955 6 i915,drm_kms_helper button 12944 1 i915 snd 65244 19 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,thinkpad_acpi soundcore 13026 2 snd,snd_hda_codec i2c_algo_bit 12751 1 i915 i2c_core 46012 7 drm,i915,i2c_i801,drm_kms_helper,i2c_algo_bit,v4l2_common,videodev video 18096 1 i915 processor 28221 0 fuse 83350 3 parport_pc 26300 0 ppdev 16782 0 lp 17074 0 parport 35749 3 lp,ppdev,parport_pc autofs4 35529 2 usb_storage 56215 1 ext4 473802 1 crc16 12343 1 ext4 mbcache 17171 1 ext4 jbd2 82413 1 ext4 sg 29973 0 sd_mod 44356 6 crc_t10dif 12431 1 sd_mod crct10dif_generic 12581 0 rtsx_pci_sdmmc 21105 0 mmc_core 102374 1 rtsx_pci_sdmmc ahci 33291 3 crct10dif_pclmul 13387 1 crct10dif_common 12356 3 crct10dif_pclmul,crct10dif_generic,crc_t10dif libahci 27158 1 ahci crc32c_intel 21809 0 libata 177457 2 ahci,libahci ehci_pci 12512 0 xhci_hcd 148881 0 ehci_hcd 69837 1 ehci_pci scsi_mod 191405 4 sg,usb_storage,libata,sd_mod usbcore 195340 11 uvcvideo,usb_storage,ehci_hcd,ehci_pci,usbhid,usbnet,cdc_mbim,cdc_acm,cdc_ncm,cdc_wdm,xhci_hcd e1000e 212128 0 rtsx_pci 37719 2 rtsx_pci_ms,rtsx_pci_sdmmc mfd_core 12601 2 lpc_ich,rtsx_pci usb_common 12440 1 usbcore ptp 17692 1 e1000e pps_core 17225 1 ptp thermal 17559 0 thermal_sys 27642 5 video,intel_powerclamp,thermal,processor,x86_pkg_temp_thermal "