Comment 198 for bug 1049466

after moving to new kernel 4.2.0 trying to solve the problem in bug #1474898
my wifi using Ralink RT3290 is very unstable, the wifi signal looks very poor, the wifi connections stops and sometimes I can restrart with enable wifi, sometimes I can restart it only rebooting.

corrado@corrado-wily:~$ uname -a
Linux corrado-wily 4.2.0-040200rc2-generic #201507121935 SMP Sun Jul 12 23:36:39 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

some lines from: sudo lspci -v

09:00.0 Network controller: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe
 Subsystem: Hewlett-Packard Company Ralink RT3290LE 802.11bgn 1x1 Wi-Fi and Bluetooth 4.0 Combo Adapter
 Flags: bus master, fast devsel, latency 0, IRQ 16
 Memory at b2510000 (32-bit, non-prefetchable) [size=64K]
 Capabilities: [40] Power Management version 3
 Capabilities: [50] MSI: Enable- Count=1/32 Maskable- 64bit+
 Capabilities: [70] Express Endpoint, MSI 00
 Capabilities: [100] Advanced Error Reporting
 Capabilities: [140] Device Serial Number 00-00-5d-03-82-b8-d1-ac
 Kernel driver in use: rt2800pci