WiFi disconnection issues: wpi unreliable (Intel PRO)

[Riccardo Mottola <riccardo.mottola%libero.it@localhost>]

Hi,


my Asus laptop comes up with:

[     1.026365] wpi0 at pci4 dev 0 function 0: vendor 8086 product 4222 
(rev. 0x02)
[     1.026365] wpi0: interrupting at msi2 vec 0
[     1.026365] wpi0: MoW2, address 00:13:02:21:b0:e3
[     1.026365] wpi0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 
48Mbps 54Mbps
[     1.026365] wpi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
[     1.026365] wpi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 
12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps

if I configure network, it comes up quickly and appear working just 
fine. After a while (I did not test if it is just a matter of time or 
caused by download, usage, e.g. currently I am trying to clone a larger 
git repo) it disconnects

I see "status" not active anymore... and in dmesg I notice:

[  5928.137024] wpi0: autoconfiguration error: fatal firmware error
[  9020.332405] wpi0: autoconfiguration error: fatal firmware error
[  9030.258714] wpi0: autoconfiguration error: fatal firmware error
[  9142.510061] wpi0: autoconfiguration error: fatal firmware error


If I pull it down and up again, it does not reconnect... Also I see with 
ifconfig that
        media: IEEE802.11 autoselect (DS1 mode 11g)

the "mode" of the media changes to a lot of different values. Finally 
after some attempts and leaving it down, it come sup again.... works for 
a while and stops.
(this is why several firmware errors)

The card is:

005:00:0: Intel PRO/Wireless LAN 3945ABG Mini-PCI Adapter (miscellaneous 
network, revision 0x02)


Riccardo