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Old 09-23-2009, 03:31 AM   #1
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Registered: Sep 2009
Distribution: Ubuntu 10.10 64 bits
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Intel Corporation Wireless WiFi Link 5100 latency problem

Hi all,

I have a similar problem with the wifi "n" connection (if I connect with wifi "b" or cable, works fine, and in Vista works fine in wifi "n"). My laptop it's a Toshiba Satellite A500-141, and the Network controller is an "Intel Corporation Wireless WiFi Link 5100"
When starts my laptop and Network Manager shows established connection but if I do a ping command to (it's the router) the answer delay until 40 seconds. After this firts ping the answer time it's 12ms. Also disconnections happen (but network manager shows the connection established) and the ping delay 40 seconds one more time.

I try to install the intel driver, but after "cp iwlwifi-5000-2.ucode /lib/firmware" what is the next step?

This is the ping results:
jordi@jordi-laptop:~$ ping
PING ( 56(84) bytes of data.
From icmp_seq=28 Destination Host Unreachable
From icmp_seq=29 Destination Host Unreachable
From icmp_seq=30 Destination Host Unreachable
From icmp_seq=31 Destination Host Unreachable
From icmp_seq=32 Destination Host Unreachable
From icmp_seq=33 Destination Host Unreachable
64 bytes from icmp_seq=1 ttl=64 time=46189 ms
64 bytes from icmp_seq=2 ttl=64 time=45188 ms
64 bytes from icmp_seq=3 ttl=64 time=44188 ms
64 bytes from icmp_seq=4 ttl=64 time=43188 ms
64 bytes from icmp_seq=5 ttl=64 time=42189 ms
64 bytes from icmp_seq=6 ttl=64 time=41187 ms
64 bytes from icmp_seq=7 ttl=64 time=40188 ms
64 bytes from icmp_seq=8 ttl=64 time=39188 ms
64 bytes from icmp_seq=9 ttl=64 time=38188 ms
64 bytes from icmp_seq=10 ttl=64 time=37189 ms
64 bytes from icmp_seq=11 ttl=64 time=36188 ms
64 bytes from icmp_seq=12 ttl=64 time=35188 ms
64 bytes from icmp_seq=13 ttl=64 time=34189 ms
64 bytes from icmp_seq=14 ttl=64 time=33188 ms
64 bytes from icmp_seq=15 ttl=64 time=32188 ms
64 bytes from icmp_seq=48 ttl=64 time=2.44 ms
64 bytes from icmp_seq=49 ttl=64 time=2.47 ms
64 bytes from icmp_seq=50 ttl=64 time=2.79 ms

Thak you very much in advanced, and sorry my english.
Old 09-23-2009, 04:04 AM   #2
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I moved your question to its own thread. It can be confusing for members to track two separate problems in the same thread.
Old 09-25-2009, 03:26 AM   #3
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Hi all,
I try to install the new intel firmware "iwlwifi-5000-2.ucode", but I don't know how.
I've done: "sudo cp iwlwifi-5000-ucode- (2)/iwlwifi-5000-2.ucode /lib/firmware", but, what is the next step?
This is console result:
jordi@jordi-ubuntu:~$ uname -r
jordi@jordi-ubuntu:~$ dmesg | grep iwl
[ 11.269247] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27ks
[ 11.269250] iwlagn: Copyright(c) 2003-2009 Intel Corporation
[ 11.269335] iwlagn 0000:14:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[ 11.269343] iwlagn 0000:14:00.0: setting latency timer to 64
[ 11.269375] iwlagn 0000:14:00.0: Detected Intel Wireless WiFi Link 5100AGN REV=0x54
[ 11.291255] iwlagn 0000:14:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
[ 11.291325] iwlagn 0000:14:00.0: irq 2296 for MSI/MSI-X
[ 11.294866] phy0: Selected rate control algorithm 'iwl-agn-rs'
[ 23.622760] iwlagn 0000:14:00.0: firmware: requesting lbm-iwlwifi-5000-1.ucode
[ 23.710974] iwlagn 0000:14:00.0: loaded firmware version
[ 23.866506] Registered led device: iwl-phy0::radio
[ 23.866524] Registered led device: iwl-phy0::assoc
[ 23.866538] Registered led device: iwl-phy0::RX
[ 23.866551] Registered led device: iwl-phy0::TX
[ 54.361843] iwlagn 0000:14:00.0: index 0 not used in uCode key table.
[ 293.541276] iwlagn 0000:14:00.0: iwl_tx_agg_start on ra = ffff88013e5ae740 tid = 0
[ 293.541332] iwlagn 0000:14:00.0: HW queue is empty
[14096.921265] iwlagn 0000:14:00.0: iwl_tx_agg_start on ra = ffff88012c079740 tid = 0
[14096.921325] iwlagn 0000:14:00.0: HW queue is empty
Thank you very much in advanced
Old 10-01-2009, 07:10 AM   #4
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Hi all,
Two weeks ago, I spoke to Belkin support, and two days ago they send me an e-mail with a link to download a new firmware for the router.
This afternoon I've installed the new firmware and..., surprise, the ping answer was inmediatly!!!!, but the speed was the same 60Mb/s just 20inch from the router.
I'll speak with Belkin, but it's other problem.

Note.- It's possible mark like SOLVED?

Thank you.


intel, link, wifi

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