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#1 2020-10-07 13:28:28

Henry Flower
Member
Registered: 2010-04-12
Posts: 66

[SOLVED] Slow download, high upload speeds

Hi,

For the last couple of days I've been experiencing unusually slow download speeds, but my upload speeds remain much higher. This applies to both wifi access via the router (Deutsche Telekom Speedport) and mobile data via USB tethering, but not mobile data via a hotspot.

Possibly relevant outputs:

Speedtest data with hotspot:

Testing from Vodafone DSL (109.41.128.106)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by Daten- und Telekommunikations-GmbH (Dessau) [52.52 km]: 78.544 ms
Testing download speed................................................................................
Download: 13.46 Mbit/s
Testing upload speed......................................................................................................
Upload: 4.97 Mbit/s

Speedtest data tethering:


Testing from Deutsche Telekom AG (87.186.69.253)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by Thüga SmartService (Hof) [81.81 km]: 190.722 ms
Testing download speed................................................................................
Download: 0.69 Mbit/s
Testing upload speed......................................................................................................
Upload: 4.93 Mbit/s

Speedtest wifi router:

Testing from Deutsche Telekom AG (87.186.69.253)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by nbiserv (Bethenhausen) [17.65 km]: 182.65 ms
Testing download speed................................................................................
Download: 1.36 Mbit/s
Testing upload speed......................................................................................................
Upload: 6.04 Mbit/s
[mark@stiltspear ~]$ifconfig
enp9s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether c8:5b:76:4f:4c:d1  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 14220  bytes 1168340 (1.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 14220  bytes 1168340 (1.1 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp8s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.2.106  netmask 255.255.255.0  broadcast 192.168.2.255
        inet6 2003:e8:b70c:b158:852c:f876:2e9:c453  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::8a8:f353:4ebd:73e0  prefixlen 64  scopeid 0x20<link>
        ether e4:a7:a0:1f:20:20  txqueuelen 1000  (Ethernet)
        RX packets 2876018  bytes 2173822069 (2.0 GiB)
        RX errors 0  dropped 4744  overruns 0  frame 0
        TX packets 2752788  bytes 1437364751 (1.3 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
mark@stiltspear ~]$lspci -v
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
	Subsystem: Lenovo Device 3802
	Flags: bus master, fast devsel, latency 0
	Capabilities: <access denied>
	Kernel driver in use: skl_uncore

00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 122
	Bus: primary=00, secondary=01, subordinate=06, sec-latency=0
	I/O behind bridge: 00005000-00005fff [size=4K]
	Memory behind bridge: 93000000-93ffffff [size=16M]
	Prefetchable memory behind bridge: 0000000080000000-0000000091ffffff [size=288M]
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06) (prog-if 00 [VGA controller])
	Subsystem: Lenovo Device 3802
	Flags: bus master, fast devsel, latency 0, IRQ 142
	Memory at 92000000 (64-bit, non-prefetchable) [size=16M]
	Memory at a0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 6000 [size=64]
	Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

00:14.0 USB controller: Intel Corporation 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller (rev 31) (prog-if 30 [XHCI])
	Subsystem: Lenovo Device 3802
	Flags: bus master, medium devsel, latency 0, IRQ 129
	Memory at 94400000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

00:16.0 Communication controller: Intel Corporation 100 Series/C230 Series Chipset Family MEI Controller #1 (rev 31)
	Subsystem: Lenovo Device 3802
	Flags: bus master, fast devsel, latency 0, IRQ 128
	Memory at 9442a000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: mei_me
	Kernel modules: mei_me

00:17.0 SATA controller: Intel Corporation HM170/QM170 Chipset SATA Controller [AHCI Mode] (rev 31) (prog-if 01 [AHCI 1.0])
	Subsystem: Lenovo Device 3802
	Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 127
	Memory at 94428000 (32-bit, non-prefetchable) [size=8K]
	Memory at 9442d000 (32-bit, non-prefetchable) [size=256]
	I/O ports at 6080 [size=8]
	I/O ports at 6088 [size=4]
	I/O ports at 6060 [size=32]
	Memory at 9442b000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:1c.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #2 (rev f1) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 123
	Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
	I/O behind bridge: [disabled]
	Memory behind bridge: 94300000-943fffff [size=1M]
	Prefetchable memory behind bridge: [disabled]
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.2 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #3 (rev f1) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 124
	Bus: primary=00, secondary=08, subordinate=08, sec-latency=0
	I/O behind bridge: [disabled]
	Memory behind bridge: 94200000-942fffff [size=1M]
	Prefetchable memory behind bridge: [disabled]
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.3 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #4 (rev f1) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 125
	Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
	I/O behind bridge: 00004000-00004fff [size=4K]
	Memory behind bridge: 94100000-941fffff [size=1M]
	Prefetchable memory behind bridge: [disabled]
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1d.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #9 (rev f1) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 126
	Bus: primary=00, secondary=0a, subordinate=0a, sec-latency=0
	I/O behind bridge: 00003000-00003fff [size=4K]
	Memory behind bridge: 94000000-940fffff [size=1M]
	Prefetchable memory behind bridge: [disabled]
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1f.0 ISA bridge: Intel Corporation HM170 Chipset LPC/eSPI Controller (rev 31)
	Subsystem: Lenovo Device 3802
	Flags: bus master, medium devsel, latency 0

00:1f.2 Memory controller: Intel Corporation 100 Series/C230 Series Chipset Family Power Management Controller (rev 31)
	Subsystem: Lenovo Device 3802
	Flags: bus master, fast devsel, latency 0
	Memory at 94424000 (32-bit, non-prefetchable) [size=16K]

00:1f.3 Audio device: Intel Corporation 100 Series/C230 Series Chipset Family HD Audio Controller (rev 31)
	Subsystem: Lenovo Device 3802
	Flags: bus master, fast devsel, latency 32, IRQ 143
	Memory at 94420000 (64-bit, non-prefetchable) [size=16K]
	Memory at 94410000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:1f.4 SMBus: Intel Corporation 100 Series/C230 Series Chipset Family SMBus (rev 31)
	Subsystem: Lenovo Device 3802
	Flags: medium devsel, IRQ 16
	Memory at 9442c000 (64-bit, non-prefetchable) [size=256]
	I/O ports at 6040 [size=32]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801

01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 960M] (rev a2)
	Subsystem: Lenovo Device 3802
	Flags: bus master, fast devsel, latency 0, IRQ 144
	Memory at 93000000 (32-bit, non-prefetchable) [size=16M]
	Memory at 80000000 (64-bit, prefetchable) [size=256M]
	Memory at 90000000 (64-bit, prefetchable) [size=32M]
	I/O ports at 5000 [size=128]
	Capabilities: <access denied>
	Kernel driver in use: nvidia
	Kernel modules: nouveau, nvidia_drm, nvidia

07:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01) (prog-if 01)
	Subsystem: Lenovo Device 3800
	Flags: bus master, fast devsel, latency 0, IRQ 138
	Memory at 94301000 (32-bit, non-prefetchable) [size=4K]
	Memory at 94300000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: sdhci-pci
	Kernel modules: sdhci_pci

08:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)
	Subsystem: Intel Corporation Dual Band Wireless-AC 8260
	Flags: bus master, fast devsel, latency 0, IRQ 141
	Memory at 94200000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi

09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
	Subsystem: Lenovo Device 3831
	Flags: bus master, fast devsel, latency 0, IRQ 19
	I/O ports at 4000 [size=256]
	Memory at 94104000 (64-bit, non-prefetchable) [size=4K]
	Memory at 94100000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169
	Kernel modules: r8169

0a:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM951/PM951 (rev 01) (prog-if 02 [NVM Express])
	Subsystem: Samsung Electronics Co Ltd Device a801
	Flags: bus master, fast devsel, latency 0, IRQ 16, NUMA node 0
	Memory at 94000000 (64-bit, non-prefetchable) [size=16K]
	I/O ports at 3000 [size=256]
	Capabilities: <access denied>
	Kernel driver in use: nvme

Pacman log is here: https://gist.github.com/0c3c35078356283 … fc768b65d3

Any ideas would be greatly appreciated! Would any other output be helpful?

Last edited by Henry Flower (2020-10-08 11:45:32)

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#2 2020-10-07 14:02:58

Zod
Member
From: Hoosiertucky
Registered: 2019-03-10
Posts: 636

Re: [SOLVED] Slow download, high upload speeds

Contact your provider?

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#3 2020-10-07 14:23:47

Henry Flower
Member
Registered: 2010-04-12
Posts: 66

Re: [SOLVED] Slow download, high upload speeds

Zod wrote:

Contact your provider?

Slightly complicated because it's not my provider, but my in-laws'. If that's likely to be the source, of course I will, but I thought the fact I see the same pattern in mobile data + USB tethering and wifi + router, but not in mobile data + hotspot, meant it was likely to be an issue with my computer.

Internet for other computers in the house is according to reports not great, but not as poor as what I'm experiencing.

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#4 2020-10-07 15:11:13

solskog
Member
Registered: 2020-09-05
Posts: 462

Re: [SOLVED] Slow download, high upload speeds

I would do a ethernet speedtest first. connect enp9s0 through ethernet cable to the router and speedtest again.

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#5 2020-10-07 15:16:59

Henry Flower
Member
Registered: 2010-04-12
Posts: 66

Re: [SOLVED] Slow download, high upload speeds

I'll put that on my shopping list for tomorrow, and see if it's any better. Thanks!

ETA: Factory reset of the router fixed that part of the issue; the USB tethering aspect remains a mystery to me, but as it's no longer necessary, and it seems this isn't an arch issue after all, I'll mark it as solved. Thanks for the suggestions and taking the time to help.

Last edited by Henry Flower (2020-10-08 11:45:10)

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