Internet issues out of the blue

Support Network
1

Hi guys,

today I woke up, grabbed my laptop and booted it up for work. But suddenly I experienced internet issues (colleagues on Discord said that I was speaking intermittently), but I thought it was a wifi issue. So I cabled the laptop, but the issue is still there.

The other devices, phone on wifi and the other cabled PC, running Windows 10, have no network issues.

Yesterday I did not update anything on Manjaro, today I tried to switch kernel, from 5.8 to 5.4LTS, but no luck.

inxi -Nazy
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Hewlett-Packard driver: r8169 v: kernel port: 4000 bus ID: 03:00.0 
  chip ID: 10ec:8168 
  Device-2: Realtek RTL8822BE 802.11a/b/g/n/ac WiFi adapter 
  vendor: Hewlett-Packard driver: rtw_pci v: N/A modules: rtwpci port: 3000 
  bus ID: 05:00.0 chip ID: 10ec:b822 

ethtool eno1
netlink error: No such file or directory
Settings for eno1:
	Supported ports: [ TP MII ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Supported pause frame use: Symmetric Receive-only
	Supports auto-negotiation: Yes
	Supported FEC modes: Not reported
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Advertised pause frame use: Symmetric Receive-only
	Advertised auto-negotiation: Yes
	Advertised FEC modes: Not reported
	Link partner advertised link modes:  10baseT/Half 10baseT/Full 
	                                     100baseT/Half 100baseT/Full 
	                                     1000baseT/Full 
	Link partner advertised pause frame use: Symmetric
	Link partner advertised auto-negotiation: Yes
	Link partner advertised FEC modes: Not reported
	Speed: 1000Mb/s
	Duplex: Full
	Port: MII
	PHYAD: 0
	Transceiver: external
	Auto-negotiation: on
Cannot get wake-on-lan settings: Operation not permitted
	Current message level: 0x00000033 (51)
			       drv probe ifdown ifup
	Link detected: yes

sudo journalctl -r -b 0 | grep r8169
set 30 10:52:58 PCABS kernel: r8169 0000:03:00.0 eno1: Link is Up - 1Gbps/Full - flow control rx/tx
set 30 10:44:41 PCABS kernel: r8169 0000:03:00.0 eno1: Link is Down
set 30 10:44:41 PCABS kernel: Generic FE-GE Realtek PHY r8169-300:00: attached PHY driver [Generic FE-GE Realtek PHY] (mii_bus:phy_addr=r8169-300:00, irq=IGNORE)
set 30 10:44:40 PCABS kernel: r8169 0000:03:00.0 eno1: renamed from eth0
set 30 10:44:40 PCABS kernel: r8169 0000:03:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
set 30 10:44:40 PCABS kernel: r8169 0000:03:00.0 eth0: RTL8168h/8111h, e8:d8:d1:f8:36:2b, XID 541, IRQ 143
set 30 10:44:40 PCABS kernel: libphy: r8169: probed
set 30 10:44:40 PCABS kernel: r8169 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control

The issue comes and goes, I can surf the internet for a couple of seconds, then it’s like I have 0 speed (on speedtest it goes to 700/800/900 Mbps for 2 seconds, then it freezes, goes down, and back up to maximum).

2

Ok, it seems that I’ve packet loss.

--- xxx.xxx.xxx.xxx ping statistics ---
13 packets transmitted, 11 received, 15.3846% packet loss, time 12053ms
rtt min/avg/max/mdev = 16.434/17.204/17.820/0.340 ms

--- xxx.xxx.xxx.xxx ping statistics ---
21 packets transmitted, 10 received, 52.381% packet loss, time 20164ms
rtt min/avg/max/mdev = 17.206/19.299/28.648/3.183 ms

The first one is on eth, the second one is on WiFi. No packet loss on other devices.

3

Problem might not be your machine, it could be your router/modem or your ISP.
Check with another device if this is indeed limited to your machine.

4

Tried all the devices, no issues whatsoever.

5

I have a different issue but I see something common. You are using the r8169 drivers, on a Realtek RTL8111/8168/8411 chipset, I fixed my issue by installing the 8168 driver from Hardware menu in System Settings.

1 Like
6

I installed the drivers, now inixi is like this:

inxi -Nazy        
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Hewlett-Packard driver: r8168 v: 8.048.03-NAPI modules: r8169 
  port: 4000 bus ID: 03:00.0 chip ID: 10ec:8168 
  Device-2: Realtek RTL8822BE 802.11a/b/g/n/ac WiFi adapter 
  vendor: Hewlett-Packard driver: rtw_pci v: N/A modules: rtwpci port: 3000 
  bus ID: 05:00.0 chip ID: 10ec:b822

Is it normal that modules is r8169?

Also:

lsmod             
Module                  Size  Used by
r8168                 573440  0

Shouldn’t be at least 1?

7

I don’t know I just notice the similarity, also second similarity is that I had issue out of nowhere, no reason, I didn’t change anything relevant to create network issue.

8

I too had this issue. Took a while to spot the difference between the actual chipset and the driver. I don’t know why the install does that.

9

Thinking about it a bit, I remembered there was something about the default Linux drivers that made this mess. I went googling a bit with:

r8168 vs r8169

Which seemed to be a popular search, and there it was. I was using Ubuntu back when I had this issue, and their forums had the same answer that helped me. I’ll link it here:

https://ubuntuforums.org/showthread.php?t=1022411&page=10&p=11471929#post11471929

10

installing the network-r8168 driver from System Settings -> Hardware will do that, blacklist the r8169, and download/install/enable the r8168.