Network speeds differ according to boot source

[stevef]

How do I mark it as solved?

Instructions with pictures at the bottom of this post

https://www.linuxliteos.com/forums/introductions/forum-posting-guidelines/

[Earthenware]

After a long and tedious day installing, de-installing and re-installing OSs, I've found the problem (I think).
The short version is that the culprit is the Mullvad VPN client.
The long version is as follows:
I've used four OSs as part of testing: LL 6.6, LL 5.4, Mint and MX.
All OSs work fine when booted from Live USB.
All installed OSs work fine until the Mullvad client is installed.
The Mullvad client screws up every OS.

In all cases except MX, the problem remains even after the Mullvad client is de-installed.
I even regressed to LL 5.4 and an older version of the Mullvad client (which I know to work ok) and found the same problem: LL works fine, Mullvad install screws it up, remove Mulllvad, still screwed.
I know for a fact that some of these combos work on my old computers (e.g. LL 5.4 and old Mullvad client), so I can only assume that the NIC in the new PC is the other factor.
I like Mullvad, so I'm going to take this up with them.  Hopefully there's a fix available.  If there is, I'll report back here in case anyone else has the same problem.
Until then, I'll mark this thread as SOLVED, although all I've really done is identify the culprit rather than solved the problem.
PS: How do I mark it as solved?

[Earthenware]

Sorry, I missed the MX question.

TBH I don't remember whether it happened when booting from USB.  I only noticed that it was a problem once installed.  I've since re-used the Live USB.

I think next I'm going to try installing the "edge" version of Mint, as it claims to have support for newer hardware (which I still think is the underlying problem here).

[stevef]

Can't see anything there.  It's possible tracepath might have shown something but I guess you have other network devices working fine which rules out your WAN and ISP leaving us with what's different between the live booted and installed versions.

As you say, this is weird so I'd be really tempted to go back to the freshly installed set up (without firewall, VPN or virtual machine or even updates) and thoroughly check network performance at that point.

I've seen a VPN set up leave hooks in the IP stack which affected network operation even after the VPN had been uninstalled, so don't trust disabling.

I very much hope that LL hasn't developed an allergy to VMs

Not heard any other reports of this nature.

The Linux Lite updates run at about 20-30kbps, which I would also consider slow (unless LL usually does this now).

Yes - if you are getting 20-30kb(it)ps, that would be dial-up slow and isn't 'normal'.

On a 40Mbit/s nominal download connection with a local mirror a recent upgrade to Firefox gave me.

Fetched 62.8 MB in 14s (4,458 kB/s)

4458 kB(ytes) per second is 35Mb(its) per second. so near enough maximum expected.

Can you clear up the point about MX please ?

[Earthenware]

Would be interesting to know if youtube videos played as expected before VirtualBox was introduced to the installed system.

Any idea what the tunnel is for ? I guessed at VPN, but is it related to virtual machine ?

Edit to request clarification.
In your original post

I tried another Llinux version to test this (MX) and the results are the same.

I initially read this to mean that MX had the same symptoms - i.e. ok on live, not ok after installation, but it could be read as no difference between installed and live versions of MX.  Can you confirm which you meant please ?

Network performance was poor before installing any software.  I noticed this when downloads of VirtualBox, VPN software were slow.  The Linux Lite updates run at about 20-30kbps, which I would also consider slow (unless LL usually does this now).

I think I may have misled when I said "New PC".  I should have said "New PC which will run exactly the same software setup as before, with the exception of LL 6.6 (I was on LL 5.x previously).  Everything is the same VPN, VirtualBox, Browsers etc etc.

OUTPUTS (VPN disabled and I don't allow pings through my firewall):
ifconfig -a
eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.8.110  netmask 255.255.255.0  broadcast 192.168.8.255
        inet6 fd14:de39:dda1:6900:d427:370b:22d8:ef80  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::3824:f2d0:1746:2269  prefixlen 64  scopeid 0x20<link>
        inet6 fd14:de39:dda1:6900:508a:2581:5bbe:454  prefixlen 64  scopeid 0x0<global>
        ether 88:05:69:24:35:f8  txqueuelen 1000  (Ethernet)
        RX packets 552508  bytes 747416111 (747.4 MB)
        RX errors 50886  dropped 0  overruns 0  frame 50253
        TX packets 345427  bytes 58511199 (58.5 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xb1200000-b1220000 

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 863  bytes 83528 (83.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 863  bytes 83528 (83.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vboxnet0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.56.1  netmask 255.255.255.0  broadcast 192.168.56.255
        inet6 fe80::800:27ff:fe00:0  prefixlen 64  scopeid 0x20<link>
        ether 0a:00:27:00:00:00  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 73  bytes 9231 (9.2 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp1s0: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether a0:a4:c5:b4:46:41  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

ip r
default via 192.168.8.1 dev eno1 proto dhcp metric 100
192.168.8.0/24 dev eno1 proto kernel scope link src 192.168.8.110 metric 100
192.168.56.0/24 dev vboxnet0 proto kernel scope link src 192.168.56.1 linkdown

route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         homerouter.cpe  0.0.0.0         UG    100    0        0 eno1
192.168.8.0     0.0.0.0         255.255.255.0   U     100    0        0 eno1
192.168.56.0    0.0.0.0         255.255.255.0   U     0      0        0 vboxnet0

ip n
192.168.8.1 dev eno1 lladdr 14:de:39:dd:a1:69 REACHABLE
fe80::16de:39ff:fedd:a169 dev eno1 lladdr 14:de:39:dd:a1:69 router STALE

arp -a
homerouter.cpe (192.168.8.1) at 14:de:39:dd:a1:69 [ether] on eno1

nmcli dev show
GENERAL.DEVICE:                         eno1
GENERAL.TYPE:                           ethernet
GENERAL.HWADDR:                         88:05:69:24:35:F8
GENERAL.MTU:                            1500
GENERAL.STATE:                          100 (connected)
GENERAL.CONNECTION:                     Wired connection 1
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveC>
WIRED-PROPERTIES.CARRIER:               on
IP4.ADDRESS[1]:                         192.168.8.110/24
IP4.GATEWAY:                            192.168.8.1
IP4.ROUTE[1]:                           dst = 192.168.8.0/24, nh = 0.0.0.0, mt >
IP4.ROUTE[2]:                           dst = 0.0.0.0/0, nh = 192.168.8.1, mt =>
IP4.DNS[1]:                             192.168.8.1
IP6.ADDRESS[1]:                         fd14:de39:dda1:6900:508a:2581:5bbe:454/>
IP6.ADDRESS[2]:                         fd14:de39:dda1:6900:d427:370b:22d8:ef80>
IP6.ADDRESS[3]:                         fe80::3824:f2d0:1746:2269/64
IP6.GATEWAY:                            --
IP6.ROUTE[1]:                           dst = fe80::/64, nh = ::, mt = 1024
IP6.ROUTE[2]:                           dst = fd14:de39:dda1:6900::/64, nh = ::>
IP6.DNS[1]:                             fe80::16de:39ff:fedd:a169
GENERAL.DEVICE:                         wlp1s0
GENERAL.TYPE:                           wifi
GENERAL.HWADDR:                         A0:A4:C5:B4:46:41
GENERAL.MTU:                            1500
GENERAL.STATE:                          20 (unavailable)
GENERAL.CONNECTION:                     --
GENERAL.CON-PATH:                       --
IP4.GATEWAY:                            --
IP6.GATEWAY:                            --
GENERAL.DEVICE:                         vboxnet0
GENERAL.TYPE:                           ethernet
GENERAL.HWADDR:                         0A:00:27:00:00:00
GENERAL.MTU:                            1500
GENERAL.STATE:                          10 (unmanaged)
GENERAL.CONNECTION:                     --
GENERAL.CON-PATH:                       --
WIRED-PROPERTIES.CARRIER:               off
IP4.ADDRESS[1]:                         192.168.56.1/24
IP4.GATEWAY:                            --
IP4.ROUTE[1]:                           dst = 192.168.56.0/24, nh = 0.0.0.0, mt>
IP6.ADDRESS[1]:                         fe80::800:27ff:fe00:0/64
IP6.GATEWAY:                            --
IP6.ROUTE[1]:                           dst = fe80::/64, nh = ::, mt = 256
GENERAL.DEVICE:                         lo
GENERAL.TYPE:                           loopback
GENERAL.HWADDR:                         00:00:00:00:00:00
GENERAL.MTU:                            65536
GENERAL.STATE:                          10 (unmanaged)
GENERAL.CONNECTION:                     --
GENERAL.CON-PATH:                       --
IP4.ADDRESS[1]:                         127.0.0.1/8
IP4.GATEWAY:                            --
IP6.ADDRESS[1]:                         ::1/128
IP6.GATEWAY:                            --
IP6.ROUTE[1]:                           dst = ::1/128, nh = ::, mt = 256

resolvectl status
Global
       Protocols: -LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
resolv.conf mode: foreign

Link 2 (eno1)
    Current Scopes: DNS
         Protocols: +DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
Current DNS Server: 192.168.8.1
       DNS Servers: 192.168.8.1

Link 3 (wlp1s0)
Current Scopes: none
     Protocols: -DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported

Link 8 (vboxnet0)
Current Scopes: none
     Protocols: -DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported
 simon  ~  resolvectl query bbc.co.uk
bbc.co.uk: 151.101.64.81                       -- link: eno1
           151.101.192.81                      -- link: eno1
           151.101.0.81                        -- link: eno1
           151.101.128.81                      -- link: eno1
           2a04:4e42::81                       -- link: eno1
           2a04:4e42:400::81                   -- link: eno1
           2a04:4e42:600::81                   -- link: eno1
           2a04:4e42:200::81                   -- link: eno1

-- Information acquired via protocol DNS in 24.4ms.
-- Data is authenticated: no; Data was acquired via local or encrypted transport: no
-- Data from: network

[stevef]

Would be interesting to know if youtube videos played as expected before VirtualBox was introduced to the installed system.

Any idea what the tunnel is for ? I guessed at VPN, but is it related to virtual machine ?

Edit to request clarification.
In your original post

I tried another Llinux version to test this (MX) and the results are the same.

I initially read this to mean that MX had the same symptoms - i.e. ok on live, not ok after installation, but it could be read as no difference between installed and live versions of MX.  Can you confirm which you meant please ?

[Earthenware]

I'll work my way through that stuff, but it will take a while.


Regarding VMs, I'm running the exact same VirtualBox setup that I have on all my previous Linux Lite computers, including the exact same VMs and the exact same VirtualBox internal network configuration.


I very much hope that LL hasn't developed an allergy to VMs, as they are essential to my business.

[stevef]

Booting from PC:
Network:
  Device-1: Intel Ethernet I219-V driver: e1000e
  IF: eno1 state: up speed: 1000 Mbps duplex: full mac: 88:05:69:24:35:f8
  IP v4: 192.168.8.110/24 type: dynamic noprefixroute scope: global
  IP v6: fd14:de39:dda1:6900:7013:abfe:de3a:692/64 type: temporary dynamic
  scope: global
  IP v6: fd14:de39:dda1:6900:d427:370b:22d8:ef80/64
  type: dynamic mngtmpaddr noprefixroute scope: global
  IP v6: fe80::3824:f2d0:1746:2269/64 type: noprefixroute scope: link
  Device-2: Intel Wireless 7265 driver: iwlwifi
  IF: wlp1s0 state: down mac: a0:a4:c5:b4:46:41
  IF-ID-1: tun0 state: unknown speed: 10 Mbps duplex: full mac: N/A
  IP v4: 10.10.0.8/16 scope: global
  IP v6: fe80::b291:da71:92ad:22b2/64 virtual: stable-privacy scope: link
  IF-ID-2: vboxnet0 state: up speed: 10 Mbps duplex: full
  mac: 0a:00:27:00:00:00
  IP v4: 192.168.56.1/24 scope: global
  IP v6: fe80::800:27ff:fe00:0/64 scope: link
  WAN IP: ;; communications error to 208.67.222.222#53: connection refused

Ethernet driver is clearly the same in both case, but there are some 'extras' in your installed version.
It appears to have a tunnel network and a virtual machine.
I don't use virtual machines and don't know yet if it is significant to your problem.

Secondly, the WAN address reporting is showing an odd situation, possibly related to DNS. This may be significant.

Have you set up a virtual machine in the installed version or done anything at all related to networking - maybe a VPN?

If possible can you run these commands in both scenarios.  Apologies for the scattergun approach, but something in one or more of these outputs might show why the network is performing differently in the installed version.

Code: [Select]

ifconfig -a

Code: [Select]

ip r

Code: [Select]

route

Code: [Select]

ip n

Code: [Select]

arp -a

Code: [Select]

ping _gatewayAllow to run for 5 seconds, then terminate command with 'ctrl c'

Code: [Select]

ping 8.8.8.8Allow to run for 5 seconds, then terminate command with 'ctrl c'

Code: [Select]

ping google.comAllow to run for 5 seconds, then terminate command with 'ctrl c'

Code: [Select]

nmcli dev showIf the screen pause showing 'lines x-y' press space until you see (END), then press 'Q'

Code: [Select]

resolvectl statusIf the screen pause showing 'lines x-y' press space until you see (END), then press 'Q'

Code: [Select]

resolvectl query bbc.co.uk

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tracepath -l 500 -n -b 184.95.56.34

[Earthenware]

To check your driver theory post back with the outputs of this command run in both boot scenarios.

Code: [Select]

inxi -niYou may want to mask the WAN IP address.

Running that command gives the following:

Booting from USB
Network:
  Device-1: Intel Ethernet I219-V driver: e1000e
  IF: eno1 state: up speed: 1000 Mbps duplex: full mac: 88:05:69:24:35:f8
  IP v4: 192.168.8.110/24 type: dynamic noprefixroute scope: global
  IP v6: fd14:de39:dda1:6900:f99f:e573:8a89:1638/64 type: temporary dynamic
  scope: global
  IP v6: fd14:de39:dda1:6900:d427:370b:22d8:ef80/64
  type: dynamic mngtmpaddr noprefixroute scope: global
  IP v6: fe80::3824:f2d0:1746:2269/64 type: noprefixroute scope: link
  Device-2: Intel Wireless 7265 driver: iwlwifi
  IF: wlp1s0 state: down mac: a0:a4:c5:b4:46:41
  WAN IP: 31.94.71.180

Booting from PC:
Network:
  Device-1: Intel Ethernet I219-V driver: e1000e
  IF: eno1 state: up speed: 1000 Mbps duplex: full mac: 88:05:69:24:35:f8
  IP v4: 192.168.8.110/24 type: dynamic noprefixroute scope: global
  IP v6: fd14:de39:dda1:6900:7013:abfe:de3a:692/64 type: temporary dynamic
  scope: global
  IP v6: fd14:de39:dda1:6900:d427:370b:22d8:ef80/64
  type: dynamic mngtmpaddr noprefixroute scope: global
  IP v6: fe80::3824:f2d0:1746:2269/64 type: noprefixroute scope: link
  Device-2: Intel Wireless 7265 driver: iwlwifi
  IF: wlp1s0 state: down mac: a0:a4:c5:b4:46:41
  IF-ID-1: tun0 state: unknown speed: 10 Mbps duplex: full mac: N/A
  IP v4: 10.10.0.8/16 scope: global
  IP v6: fe80::b291:da71:92ad:22b2/64 virtual: stable-privacy scope: link
  IF-ID-2: vboxnet0 state: up speed: 10 Mbps duplex: full
  mac: 0a:00:27:00:00:00
  IP v4: 192.168.56.1/24 scope: global
  IP v6: fe80::800:27ff:fe00:0/64 scope: link
  WAN IP: ;; communications error to 208.67.222.222#53: connection refused

[stevef]

To check your driver theory post back with the outputs of this command run in both boot scenarios.

Code: [Select]

inxi -ni
You may want to mask the WAN IP address.

[Earthenware]

Here’s a weird one.  I’ve used LL versions 1 through 5 and never seen this before.

I recently bought a new PC. I’d prepared an LL 6.6 Live USB Boot drive ahead of time.

When I boot from the Live USB and use Chrome, I get full internet speed.  I can watch YouTube videos fullscreen at 1080p60fps with no dropped frames.  Even 1440p works fine, although 4K does start to stutter a little (which may be more to do with my integrated CPU).

However…

With LL 6.6 installed, everything works fine EXCEPT network speeds. YouTube videos now struggle to play at 480p, sometimes dropping to 360p and I’ve even seen 240p.

Internet speed tests reveal that, instead of the 40mbps that I would normally see, I’m lucky to get more than 2mbps.

This is consistent and repeatable. It occurs with every browser (Chrome, Brave and Firefox).

The only reason I can think of for this is that different ethernet driver(s) are being used on the Live USB and the installed version. I tried another Llinux version to test this (MX) and the results are the same.

Does anyone have an idea what’s going on and how I can fix this?