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I have ubuntu 15.04, my Wi-Fi adapter is ralink rt5390.

lshw -C network output:

*-network               
   description: Wireless interface
   product: RT5390 Wireless 802.11n 1T/1R PCIe
   vendor: Ralink corp.
   physical id: 0
   bus info: pci@0000:02:00.0
   logical name: wlan0
   version: 00
   serial: e0:06:e6:9f:c0:84
   width: 32 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
   configuration: broadcast=yes driver=rt2800pci driverversion=3.19.0-25-generic firmware=0.34 ip=192.168.1.93 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
   resources: irq:17 memory:dea00000-dea0ffff

The problem: When I download something, or watch video online (like youtube) after some time (like 10-30 mins) I lose wifi connection, despite the fact, that GUI shows that I'm still connected, but when I try to reconnect it won't. And rebooting, re-enabling wifi/networking won't help.

Destroys? Yep, destroys my routers wifi o.O I can not connect to same wifi when I boot up my windows 7, or when I try with my android phone. It just does not connect. Although wired connection works perfectly to my other always connected pc. To fix wifi I have to reboot my router.

I'm using asus x54c laptop, I have windows 7 on this laptop with dualboot and tried openSuse, both OS'es does no harm to my wifi. What is wrong with ubuntu?

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  • 1
    it possibly that not ubuntu is guilty but your router itself? did u check tha variant?
    – Reishin
    Jul 29, 2015 at 14:37
  • Check your router with another computer and your laptop with another router that shall help determine which is at fault. Jul 29, 2015 at 15:30
  • Well might be router, but why there is no problem with openSuse or windows 7? What ubuntu does differently that causes my router to fail?
    – OfflineCat
    Jul 29, 2015 at 15:47
  • p.s. android devices does not fail wifi either.
    – OfflineCat
    Jul 29, 2015 at 15:55
  • to see the real problem you should check routers system logs, some routers allow to do this from the stock, some not, then you r less lucky. Check ubuntu with another router....btw, situation you describe very close describe the way when router "hangs".
    – Reishin
    Jul 30, 2015 at 8:37

1 Answer 1

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Partial solution

I've booted into old kernel version (3.19.0-15 to be exact) and wifi is back to normal! No disconnects while watching video, no disconnects while downloading files, everything works!

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  • p.s. even this method does not work perfectly, but wifi connection lasts at least for a couple of hours. Anyways, untill this is fixed I'm on openSuse which just works. :?
    – OfflineCat
    Sep 4, 2015 at 17:34

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