Hallo Forumnutzer,


ich kaufte zuletzt für ein Familienmitglied einen Laptop des Typs Lenovo V110-15IAP / Pentium N4200 und installierte auf diesen Linux Mint 18.2 -- lief erstmal alles prima.
Doch seit Neuestem habe ich das Problem, dass sich das WLAN des Laptops, gerade nach großen, langwierigen Übertragungen, plötzlich ausschaltet. Heute wollte ich meinen Musikordner $HOME/Musik/ in den des Laptops per rsync übertragen:
Code:
> rsync -aPe ssh /home/phbu/Musik/ michael@michaelLaptop:/home/michael/Musik/
Nach ca. einem Gigabyte brach die Übertragung ab -- der Server antwortete nicht mehr. Im Menü unseres Routers stand, michaelLaptop sei nicht mit dem WLAN verbunden. Ein paar Minuten später baute er die Verbindung wieder erfolgreich auf.

Zunächst hatte ich den Verdacht, dass unser neuer Router von der Telekom spann, doch ich weiß nicht, wie man Informationen über diesen ausliest. Der Typ lautet Speedport W 724V.
Übertrage ich große Menge an Daten per rsync an den PC meines Vaters, beide PCs besitzen jeweils eine LAN-Verbindung, bekomme ich keinerlei Probleme -- ob es etwas mit dem WLAN zu tun hat?

Folgende Daten des Laptops kann ich Euch noch übermitteln:
Code:
> uname -a

Linux michaelLaptop 4.8.0-53-generic #56~16.04.1-Ubuntu SMP Tue May 16 01:18:56 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Code:
> sudo dmidecode -t0 -t1

# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 3.0 present.

Wrong DMI structures length: 1987 bytes announced, only 1985 bytes available.
Handle 0x0003, DMI type 0, 24 bytes
BIOS Information
	Vendor: LENOVO
	Version: 1MCN36WW X64
	Release Date: 02/10/2017
	Address: 0xE0000
	Runtime Size: 128 kB
	ROM Size: 8832 kB
	Characteristics:
		PCI is supported
		BIOS is upgradeable
		BIOS shadowing is allowed
		Boot from CD is supported
		Selectable boot is supported
		EDD is supported
		3.5"/720 kB floppy services are supported (int 13h)
		3.5"/2.88 MB floppy services are supported (int 13h)
		Print screen service is supported (int 5h)
		8042 keyboard services are supported (int 9h)
		Serial services are supported (int 14h)
		Printer services are supported (int 17h)
		CGA/mono video services are supported (int 10h)
		NEC PC-98
		ACPI is supported
		USB legacy is supported
		LS-120 boot is supported
		ATAPI Zip drive boot is supported
		BIOS boot specification is supported
		Function key-initiated network boot is supported
		Targeted content distribution is supported
	BIOS Revision: 1.36
	Firmware Revision: 1.26

Handle 0x0004, DMI type 1, 27 bytes
System Information
	Manufacturer: LENOVO
	Product Name: 80TG
	Version: Lenovo V110-15IAP
	Serial Number: R90NNUDN
	UUID: AF26E36A-5A0F-11E7-9EE3-54EE75D62997
	Wake-up Type: Power Switch
	SKU Number: LENOVO_MT_80TG_BU_idea_FM_Lenovo V110-15IAP
	Family: IDEAPAD

Wrong DMI structures count: 41 announced, only 40 decoded.
Code:
> iwconfig

wlp2s0    IEEE 802.11  ESSID:"WLAN-797400"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:0F:C9:10:10:7C   
          Bit Rate=1 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=40/70  Signal level=-70 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:1   Missed beacon:0
Code:
> lscpu

Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                4
On-line CPU(s) list:   0-3
Thread(s) pro Kern:    1
Kern(e) pro Socket:    4
Socket(s):             1
NUMA-Knoten:           1
Anbieterkennung:       GenuineIntel
Prozessorfamilie:      6
Modell:                92
Model name:            Intel(R) Pentium(R) CPU N4200 @ 1.10GHz
Stepping:              9
CPU MHz:               800.024
CPU max MHz:           2500,0000
CPU min MHz:           800,0000
BogoMIPS:              2188.80
Virtualisierung:       VT-x
L1d Cache:             24K
L1i Cache:             32K
L2 Cache:              1024K
NUMA node0 CPU(s):     0-3
Flags:                 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg cx16 xtpr pdcm sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave rdrand lahf_lm 3dnowprefetch intel_pt tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust smep erms mpx rdseed smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts
Code:
> lspci

00:00.0 Host bridge: Intel Corporation Device 5af0 (rev 0b)
	Subsystem: Lenovo Device 3801
	Flags: bus master, fast devsel, latency 0

00:02.0 VGA compatible controller: Intel Corporation Device 5a84 (rev 0b) (prog-if 00 [VGA controller])
	Subsystem: Lenovo Device 3801
	Flags: bus master, fast devsel, latency 0, IRQ 370
	Memory at 90000000 (64-bit, non-prefetchable) [size=16M]
	Memory at 80000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 2000 [size=64]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

00:0e.0 Audio device: Intel Corporation Device 5a98 (rev 0b)
	Subsystem: Lenovo Device 3801
	Flags: bus master, fast devsel, latency 0, IRQ 373
	Memory at 91410000 (64-bit, non-prefetchable) [size=16K]
	Memory at 91200000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel, snd_soc_skl

00:0f.0 Communication controller: Intel Corporation Device 5a9a (rev 0b)
	Flags: bus master, fast devsel, latency 0, IRQ 371
	Memory at 91416000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: mei_me
	Kernel modules: mei_me

00:12.0 SATA controller: Intel Corporation Device 5ae3 (rev 0b) (prog-if 01 [AHCI 1.0])
	Subsystem: Lenovo Device 3801
	Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 368
	Memory at 91414000 (32-bit, non-prefetchable) [size=8K]
	Memory at 9141d000 (32-bit, non-prefetchable) [size=256]
	I/O ports at 2080 [size=8]
	I/O ports at 2088 [size=4]
	I/O ports at 2060 [size=32]
	Memory at 9141b000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci

00:13.0 PCI bridge: Intel Corporation Device 5ad8 (rev fb) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 120
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 00001000-00001fff
	Memory behind bridge: 91300000-913fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:13.1 PCI bridge: Intel Corporation Device 5ad9 (rev fb) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 121
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	Memory behind bridge: 91000000-911fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:15.0 USB controller: Intel Corporation Device 5aa8 (rev 0b) (prog-if 30 [XHCI])
	Subsystem: Lenovo Device 3801
	Flags: bus master, medium devsel, latency 0, IRQ 122
	Memory at 91400000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd

00:1c.0 SD Host controller: Intel Corporation Device 5acc (rev 0b) (prog-if 01)
	Subsystem: Lenovo Device 3801
	Flags: bus master, fast devsel, latency 0, IRQ 39
	Memory at 91419000 (64-bit, non-prefetchable) [size=4K]
	Memory at 9141a000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: sdhci-pci
	Kernel modules: sdhci_pci

00:1f.0 ISA bridge: Intel Corporation Device 5ae8 (rev 0b)
	Subsystem: Lenovo Device 3801
	Flags: bus master, medium devsel, latency 0

00:1f.1 SMBus: Intel Corporation Broxton SMBus Controller (rev 0b)
	Subsystem: Lenovo Broxton SMBus Controller
	Flags: medium devsel, IRQ 10
	Memory at 9141c000 (64-bit, non-prefetchable) [size=256]
	I/O ports at 2040 [size=32]
	Kernel modules: i2c_i801

01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
	Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
	Flags: bus master, fast devsel, latency 0, IRQ 369
	I/O ports at 1000 [size=256]
	Memory at 91304000 (64-bit, non-prefetchable) [size=4K]
	Memory at 91300000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169
	Kernel modules: r8169

02:00.0 Network controller: Qualcomm Atheros Device 0042 (rev 31)
	Subsystem: Lenovo Device 0901
	Flags: bus master, fast devsel, latency 0, IRQ 372
	Memory at 91000000 (64-bit, non-prefetchable) [size=2M]
	Capabilities: <access denied>
	Kernel driver in use: ath10k_pci
	Kernel modules: ath10k_pci
Bei dem Befehl iwconfig seht Ihr, dass das Powermanagement des WLANs deaktiviert ist -- ich stellte dies ein.

Ich bedanke mich Eurer Hilfe!


Mit freundlichen Grüßen
PHBU