4

After upgrading Ubuntu from 14.04 to 16.04 I'm having some issues with my wifi connection.

Check this out, from a wired connection (pay attention to response delay).

leo@nelson:~$ ping facebook.com
PING facebook.com (66.220.158.68) 56(84) bytes of data.
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=1 ttl=75 time=154 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=2 ttl=75 time=155 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=3 ttl=75 time=155 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=4 ttl=75 time=154 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=5 ttl=75 time=155 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=6 ttl=75 time=155 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=7 ttl=75 time=155 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=8 ttl=75 time=156 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=9 ttl=75 time=156 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=10 ttl=75 time=162 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=11 ttl=75 time=154 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=12 ttl=75 time=154 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=13 ttl=75 time=155 ms
^C
--- facebook.com ping statistics ---
13 packets transmitted, 13 received, 0% packet loss, time 12001ms
rtt min/avg/max/mdev = 154.211/155.791/162.531/2.067 ms

But when I switch to WiFi:

leo@nelson:~$ ping facebook.com
PING facebook.com (66.220.158.68) 56(84) bytes of data.
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=1 ttl=79 time=323 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=2 ttl=79 time=361 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=3 ttl=79 time=1008 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=4 ttl=79 time=652 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=5 ttl=79 time=999 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=6 ttl=79 time=1010 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=7 ttl=79 time=1003 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=8 ttl=79 time=1008 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=9 ttl=79 time=420 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=10 ttl=79 time=266 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=11 ttl=79 time=168 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=12 ttl=79 time=1009 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=13 ttl=79 time=1005 ms
64 bytes from edge-star-mini-shv-07-frc3.facebook.com (66.220.158.68): icmp_seq=14 ttl=79 time=471 ms
^C
--- facebook.com ping statistics ---
14 packets transmitted, 14 received, 0% packet loss, time 13028ms
rtt min/avg/max/mdev = 168.777/693.596/1010.408/329.180 ms, pipe 2

I have 2 different internet providers with 2 different routers on the same place. It happens the same over both connections. I've also tried with other computer with Ubuntu 12.04 and works like a charm.

I'm having this problem since I installed 16.04

Aditional info: I've been using a wired connection to work because It's unusable over wifi... BUT from time to time (every ~20-30 minutes) the wired connection gets disconnected (it happens with both routers from differents ISPs I have).

Mi wireless card info:

leo@nelson:~$ sudo lshw -class network
sudo: imposible resolver el anfitrión nelson
[sudo] password for leo: 
  *-network               
       descripción: Ethernet interface
       producto: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       fabricante: Realtek Semiconductor Co., Ltd.
       id físico: 0
       información del bus: pci@0000:01:00.0
       nombre lógico: eth0
       versión: 06
       serie: 4c:72:b9:58:9c:95
       tamaño: 100Mbit/s
       capacidad: 1Gbit/s
       anchura: 64 bits
       reloj: 33MHz
       capacidades: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuración: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168e-3_0.0.4 03/27/12 ip=192.168.0.18 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       recursos: irq:28 ioport:e000(size=256) memoria:d0004000-d0004fff memoria:d0000000-d0003fff
  *-network
       descripción: Interfaz inalámbrica
       producto: RT5390 Wireless 802.11n 1T/1R PCIe
       fabricante: Ralink corp.
       id físico: 0
       información del bus: pci@0000:02:00.0
       nombre lógico: wlan0
       versión: 00
       serie: 20:10:7a:8e:3d:66
       anchura: 32 bits
       reloj: 33MHz
       capacidades: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuración: broadcast=yes driver=rt2800pci driverversion=4.4.0-34-generic firmware=0.34 ip=192.168.1.157 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       recursos: irq:17 memoria:fea00000-fea0ffff

As @chili555 asked, here is "dmesg | grep rt2" output

leo@nelson:~$ dmesg | grep rt2
[   14.104800] rt2800pci 0000:02:00.0: enabling device (0000 -> 0002)
[   14.105008] ieee80211 phy0: rt2x00_set_rt: Info - RT chipset 5390, rev 0502 detected
[   14.109544] ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 5390 detected
[   78.812904] ieee80211 phy0: rt2x00lib_request_firmware: Info - Loading firmware file 'rt2860.bin'
[   79.015681] ieee80211 phy0: rt2x00lib_request_firmware: Info - Firmware detected - version: 0.34
[  105.903521] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  106.351522] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  106.799553] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  107.247543] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  107.759574] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  108.211584] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  108.727599] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  109.555615] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  148.965666] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  149.413726] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  149.925810] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  150.777953] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  367.323945] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  368.171986] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  368.944044] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  369.448049] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  469.630931] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  470.478973] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  470.931053] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  471.387076] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  471.843081] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  472.291140] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  472.739165] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  473.191144] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  473.691199] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[  474.191255] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 1191.044092] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 1191.816158] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 1192.316182] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 4549.926258] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 5030.979039] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 5031.427145] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 5031.883092] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 5032.655142] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 7430.737637] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 7431.185659] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 7432.033748] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 7432.497744] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 7432.997769] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[ 7433.497799] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
[10551.963800] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush

Added iwconfig requested by Jeremy31

nelson@nelson:~$ iwconfig
lo        no wireless extensions.

eno1      no wireless extensions.

enp0s19f2u5  no wireless extensions.

wlp2s0    IEEE 802.11bgn  ESSID:"Liit"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 54:BE:F7:61:84:25   
          Bit Rate=11 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=43/70  Signal level=-67 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:1637  Invalid misc:528   Missed beacon:0
Nelson Galdeman Graziano
  • 91

3 Answers3

1

I suggest that you try a driver parameter. From the terminal:

sudo -i
echo "options rt2800pci nohwcrypt=Y"  >  /etc/modprobe.d/rt2800pci.conf
exit.

Reboot. Any improvement? Check the message log:

dmesg | grep rt2

Are the errors, warnings, etc., such as you posted above, better, the same or worse?

If you wish to try to compile backports, I suggest:

cd ~/Downloads/backports-4.2.2-1

Or wherever you downloaded the package, if not Downloads.

make defconfig-wifi
make
sudo make install

The command 'make' takes a long time in this instance. Please be patient. Reboot. Any improvement? Check the message log:

dmesg | grep rt2
chili555
  • 61,330
1

Power Management is enabled on the wireless card. To disable at boot 

sudo -H gedit /lib/systemd/system/wifi-power-management-off.service
Enter the following 
[Unit]
Description=Disable power management for wlan0
Requires=sys-subsystem-net-devices-wlan0.device
After=network.target

[Service]
Type=oneshot
ExecStartPre= /bin/sleep 25
ExecStart=/sbin/iwconfig wlan0 power off


[Install]
WantedBy=multi-user.target
Save file, exit gedit and then 
systemctl enable wifi-power-management-off.service

This may prompt for your password twice, Reboot

If you have issues after suspend/sleep then you also need to 

sudo -H gedit /etc/systemd/system/root-resume.service
Enter 
[Unit]
Description=Turn off wlan power management
After=suspend.target

[Service]
Type=simple
ExecStartPre= /bin/sleep 25
ExecStart= /sbin/iwconfig wlan0 power off


[Install]
WantedBy=suspend.target

And activate with 

sudo systemctl enable root-resume

Source of the sleep/suspend fix is https://askubuntu.com/a/614245/300665

Community
  • 1
Jeremy31
  • 13,293
1

You might have to blacklist the r8169 driver and try installing the r8168 driver r8168-dkms from the universe repository. Package details

If this doesn't resolve your wired connection issues try replacing the patch cable as it may have an intermittent short.

As far as the wireless is concerned you should try 2011_1007_RT5390_RT5392_Linux_STA_V2.5.0.3_DPO updated to work with Linux kernel 3.8 and above. Installation instructions are on the same page. I will replicate them here if you see value in that.

Edit: As reported by @Nelson Galdeman Graziano, It appears that a recent update resolved this issue. So the first thing to try is sudo apt update followed by sudo apt upgrade

Source:

http://packages.ubuntu.com/search?keywords=r8168&searchon=names&suite=xenial&section=all

Elder Geek
  • 36,752