Question

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How to fix slow wireless with Intel 4965 AGN?

rated 0 times [ -1] [ 0] / answers: 1 / hits: 6462 / 3 Years ago, tue, may 4, 2021, 5:56:45

Possible Duplicate:

Slow wireless with an Intel 4965

We run Ubuntu 12.04, 32bit, with the current kernel 3.2.27-generic on an MSI EX700.

I've already added the 11n_disable=1 tweek, without whcih, wireless has been unusable.

Now, it works OK, but speedtest shows:

Windows XP - down 11.68mbps, up 2.07mbps



Ubuntu 12.04 - down 2.06mbps up 2.0mbps

We've disabled ipv6, tried static and dinamic IPs, tried both swcrypto=0 and swcrypto=1 options, none of whcih made any difference.

The problem may be the symptom of high packet loss. For example, here's the output of iwconfig after booting and testing the speeds:

wlan0     IEEE 802.11abg  ESSID:"amu"  

      Mode:Managed  Frequency:2.462 GHz  Access Point: 00:78:9E:FA:32:C8   

      Bit Rate=54 Mb/s   Tx-Power=15 dBm   

      Retry  long limit:7   RTS thr:off   Fragment thr:off

      Encryption key:off

      Power Management:off

      Link Quality=58/70  Signal level=-52 dBm  

      Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

      Tx excessive retries:11  Invalid misc:3627   Missed beacon:0

I've posted a help request before with lots of technical info and outputs.

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4 Years ago

answered 3 Years ago aciousoun · Accepted Answer

There seems to be no fix. Replace it with the same form factor if you can find it.

Intel Pro 4965AGN is old (about 2007 or so), and apparently, it had this problem on Linux for many years. It is unlikely that Intel will ever fix the driver for such an old piece of hardware, that it hasn't been able to fix thus far. I'd imagine this task is of a very low priority on the maintainers' to do list,if it's on the list at all. It is unfortunate, because Intel branded wireless cards used to have good Linux support, and were known to work out of the box.