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Wifi generally works well, but there are times when it slows down considerably or completely disconnects. This happens randomly, and I don't have such problems in Windows 10. I'm wondering if there is something wrong with the r8169 driver? I read that it could be troublesome. The problem seems to fix itself after restarting, booting into Windows, restarting again, and then booting into Ubuntu. I'd like a more permanent fix, though.

I tried replacing r8169 with r8168 but I was not able to use r8168 because it said the module could not be verified and there was a missing required key.

sudo lshw -C network
  *-network               
       description: Wireless interface
       product: RT3290 Wireless 802.11n 1T/1R PCIe
       vendor: Ralink corp.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlo1
       version: 00
       serial: 48:5a:b6:bb:75:45
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rt2800pci driverversion=4.4.0-36-generic firmware=0.37 ip=192.168.0.15 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:16 memory:f0210000-f021ffff
  *-network
       description: Ethernet interface
       product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: eno1
       version: 07
       serial: a0:1d:48:d9:db:8e
       size: 10Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:34 ioport:2000(size=256) memory:f0004000-f0004fff memory:f0000000-f0003fff memory:f0010000-f001ffff
ifconfig
eno1      Link encap:Ethernet  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:470 errors:0 dropped:0 overruns:0 frame:0
          TX packets:470 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:47156 (47.1 KB)  TX bytes:47156 (47.1 KB)

wlo1      Link encap:Ethernet  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3772 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3533 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:2824750 (2.8 MB)  TX bytes:633420 (633.4 KB)


iwconfig
lo        no wireless extensions.

wlo1      IEEE 802.11bgn    
          Mode:Managed  Frequency:2.442 GHz     
          Bit Rate=7.2 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=42/70  Signal level=-68 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:187  Invalid misc:628   Missed beacon:0

eno1      no wireless extensions.
  • 1
    your wireless driver=rt2800pci Your ethernet (wired) uses driver=r8169 driverversion=2.3LK-NAPI. You are researching the wrong driver. – Elder Geek Sep 16 '16 at 21:46
  • So then the rt2800pci driver is causing the issue? Are problems with this driver widespread? How can I fix it? – thewire Sep 16 '16 at 23:52
  • Yes, Not that I'm aware of, I'll have to look – Elder Geek Sep 16 '16 at 23:55
  • 1
    Possible duplicate of Slow wireless with rt2800pci – Elder Geek Sep 16 '16 at 23:58
  • I read that NetworkManager periodically scans for networks and that's what causes issues with some drivers. Could that be it? – thewire Sep 17 '16 at 1:10
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The drivers you refer to have nothing to do with a wireless problem.

If you're having ethernet problems, you should replace the buggy r8169 driver with the r8168-dkms driver from the repositories, AND turn off secure boot in the BIOS.

Cheers, Al

  • I did turn off secure boot, and I did install the r8168 driver, but I was unable to use it. It said "r8168: module verification failed: missing required key" – thewire Sep 16 '16 at 23:50
  • Recheck your secure boot settings in your BIOS, because turning that off will fix your missing required key error. Cheers, Al – heynnema Sep 16 '16 at 23:55

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