Packet loss / pausing when using 802.11N (Intel 6300)

Hi,
Previously, I had posted a thread involving the Intel 6250, and lack of detection of N WiFi on that card. Some time later, I bit the bullet and got an Intel 6300 card off eBay. After receiving it today, I popped it into my Thinkpad X220, and it worked.... sort of. I can definitely see wireless N support, and can associate with my 2.4 GHz mixed-mode B/G/N network at 130 Mbps, and my 5 GHz N-only router at around 243 - 270 Mbps. However, right off the bat, it seems the number of "Tx Excessive Retries" in iwconfig climb up to several thousand within ~ 15 - 20 minutes of connecting. Also right off the bat, pings are rather inconsistent (typically at least 2 ms greater than when the card is forced to work in G-only mode, and with pauses and spikes up to 800 - 2000 ms, and packet loss from 5 - 10%)
From what I have gathered so far, there has been a bug in the iwlwifi kernel tree that affects N wireless users, and this bug has been around since around 2010 or even earlier. However, I was under the impression that some sort of fix has been merged into the mainline Kernel at this point (I'm on 3.5.3-1-ARCH BTW), and my symptoms are somewhat less aggressive than the ones others described (basic web browsing works reasonably well, though there is often noticeable lag in the response times, but anything latency/packet loss-sensitive will suffer in a major way.) Has anyone managed to get wireless N to actually work reasonably well on Arch (or for that matter, ANY linux distro)? As I understand it, the matter is one of relation to the kernel module itself, so distro-distro variations of userspace apps shouldn't be as much a factor anyway. I am using WICD for my network manager, and am happy to say that it does its job admirably well (assuming the card is set to G-only mode, but the connection itself is actually maintained quite stably even in N mode.)
While I understand that the 11n_disable=1 "fix" allows most people to get on with their lives, I am rather alarmed that this is being considered a long-term solution. Many laptop owners (ThinkPad owners like myself for example) are essentially locked into Intel WiFi cards, unless we are willing to take an expensive risk and flash our BIOS to one that that doesn't have a "whitelist" of approved cards (something that can void the warranty or worse, brick a laptop.) All the while, Intel is still claiming Linux support for a card whose major capabilities are essentially neutered purely based on the OS a user chooses to run (yes, I do consider N to be a major capability, considering 300 Mbps N WiFi is basically old news, with many manufacturers coming out with full 450 Mbps routers. Also, chipsets like Atheros seem to have no problems with offering both performance and stability under Linux... my desktop rig using an Atheros card manages perfectly fine on a full-rate wireless-N network with essentially no packet loss or latency spikes.)
Below is some information that might be useful:
iwconfig (802.11g, ~ 1 hour after connection and running a few speedtests, browsing, ping testing):
wlan0 IEEE 802.11abg ESSID:"dd-wrt"
Mode:Managed Frequency:2.437 GHz Access Point: XXXXXX
Bit Rate=54 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=69/70 Signal level=-41 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:359 Missed beacon:0
iwconfig (802.11n, 5GHz after ~10 minutes browsing/ping testing):
wlan0 IEEE 802.11abgn ESSID:"net2"
Mode:Managed Frequency:5.745 GHz Access Point: XXXXXX
Bit Rate=243 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=55/70 Signal level=-55 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:860 Invalid misc:50 Missed beacon:0
iwconfig (802.11n, 2.4 GHz after connecting and running a speedtest):
wlan0 IEEE 802.11abgn ESSID:"dd-wrt"
Mode:Managed Frequency:2.437 GHz Access Point: XXXXXX
Bit Rate=117 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=66/70 Signal level=-44 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:974 Invalid misc:59 Missed beacon:0
dmesg | grep iwl :
[12011.488089] iwlwifi: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:
[12011.488092] iwlwifi: Copyright(c) 2003-2012 Intel Corporation
[12011.488269] iwlwifi 0000:03:00.0: pci_resource_len = 0x00002000
[12011.488271] iwlwifi 0000:03:00.0: pci_resource_base = ffffc900050f8000
[12011.488273] iwlwifi 0000:03:00.0: HW Revision ID = 0x35
[12011.488585] iwlwifi 0000:03:00.0: irq 50 for MSI/MSI-X
[12011.491862] iwlwifi 0000:03:00.0: loaded firmware version 9.221.4.1 build 25532
[12011.492112] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
[12011.492114] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
[12011.492116] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
[12011.492117] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE enabled
[12011.492119] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
[12011.492121] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Ultimate-N 6300 AGN, REV=0x74
[12011.492206] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12011.502925] iwlwifi 0000:03:00.0: device EEPROM VER=0x436, CALIB=0x6
[12011.502928] iwlwifi 0000:03:00.0: Device SKU: 0x1F0
[12011.502930] iwlwifi 0000:03:00.0: Valid Tx ant: 0x7, Valid Rx ant: 0x7
[12011.502946] iwlwifi 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
[12011.503105] ieee80211 phy8: Selected rate control algorithm 'iwl-agn-rs'
[12011.503456] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12011.503661] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12011.745631] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12011.745868] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12073.651471] iwlwifi: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:
[12073.651474] iwlwifi: Copyright(c) 2003-2012 Intel Corporation
[12073.651660] iwlwifi 0000:03:00.0: pci_resource_len = 0x00002000
[12073.651661] iwlwifi 0000:03:00.0: pci_resource_base = ffffc900050b8000
[12073.651663] iwlwifi 0000:03:00.0: HW Revision ID = 0x35
[12073.652241] iwlwifi 0000:03:00.0: irq 50 for MSI/MSI-X
[12073.655662] iwlwifi 0000:03:00.0: loaded firmware version 9.221.4.1 build 25532
[12073.655887] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
[12073.655890] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
[12073.655891] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
[12073.655891] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TESTMODE enabled
[12073.655892] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P disabled
[12073.655894] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Ultimate-N 6300 AGN, REV=0x74
[12073.655975] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12073.666587] iwlwifi 0000:03:00.0: device EEPROM VER=0x436, CALIB=0x6
[12073.666593] iwlwifi 0000:03:00.0: Device SKU: 0x1F0
[12073.666595] iwlwifi 0000:03:00.0: Valid Tx ant: 0x7, Valid Rx ant: 0x7
[12073.666618] iwlwifi 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
[12073.667056] ieee80211 phy9: Selected rate control algorithm 'iwl-agn-rs'
[12073.667456] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12073.667659] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12073.908411] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12073.908632] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12087.261869] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12087.262090] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12087.487757] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12087.488010] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12087.699574] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12087.699781] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12087.837322] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12087.837526] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12097.329577] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12097.329832] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12097.797748] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12097.797970] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12098.016220] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12098.016458] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12100.458762] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12100.459006] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12100.608769] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12100.609021] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12100.764093] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12100.764341] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12100.979029] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12100.979228] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[12101.159987] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[12101.160208] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
lshw | less :
*-network
description: Wireless interface
product: Centrino Ultimate-N 6300
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 35
serial: 00:24:d7:be:9e:74
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet phy
sical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.5.3-
1-ARCH firmware=9.221.4.1 build 25532 ip=192.168.1.145 latency=0 link=yes multic
ast=yes wireless=IEEE 802.11abgn
resources: irq:50 memory:f2500000-f2501fff
Thanks,
- A.G.

I have an ASUS UX32VD-DB71 which has the Intel Centrino 6235 wifi card. I've been having this laptop for more than 6 months and I've tried different solutions to fix the issue with Wireless-N but none of them were stable other than disabling N completely using 11n_disable=1
I've tried different kernels all the way from 3.2 to the latest 3.7 series of kernels (both in the openSUSE tree as well as mainline) with no luck whasoever. I also tried installing the compat-drivers from 2013-01-23-1-u version onto my 3.6 kernel which provided the same results too. I see packet loss with N and the G speeds are just too slow. I have a workstation in my network and I can only transfer effectively at 1.5 MB /s max over G whereas an old laptop from 2007 which has an 1x1 MIMO antenna (again Intel though) can connect at 144 Mbps to my router and transfer files at least 3-4 times faster (if not more).
It is totally unacceptable for Intel to not just fix this issue for Linux.
Last edited by Tuxdude (2013-02-17 01:38:59)

Similar Messages

IPhone 5S won't use 802.11n

Recently I was messing around with my WiFi router's settings to test moving to a 5Ghz spectrum from the 2.4Ghz one. Sometime during the process I noticed that my iPhone had disconnected from the router and would not connect to it no matter what I tried. As a last resort I turned off the setting that required all devices that were connected to be using 802.11n. As soon as the setting was changed my iPhone connected to the wireless network. When I looked in the connected devices tap it said that it was using 802.11g. To my knowledge the phone was using 802.11n on iOS7 but something changed after the update to iOS8.1. Is this a software problem (and are other people experiencing the same problem), or could it be a hardware problem with the phone?

I have EXACTLY the same issue & and just spent nearly an hour on the phone with BT trying to get an answer, to no avail!
My setup is:
BT HH 2.0 set up for 8011.2 b/g/n (as recommended)
BT HH has BTFon on and sharing - as well as BT Openzone
Several mobile devices - but let's focus specifically on the Dell Latitude E6510 with an N-Series wireless card
The scenario is:
My BT HH is showing an 'actual data transfer speed' of 130Mbps
My laptop connects to the BT HH SSID at a constant 54Mbps
My laptop connects to the BT BTFon SSID at a constant 130Mbps
My laptop connects to the BTOpenzone SSID at a constant 130Mbps
My laptop connects fine to other N-Series routers at 130Mbps outside of my home - so I am ruling out any configuration issues with the laptop.
There are no other wireless devices connected to the router at present.
I've used inSSIDer 2.0 to validate that the router is broadcasting at 130Mbps using 802.11n and the signal is constantly strong
So, why is my laptop unable to achieve a speed of 130Mps from the router?
Why can I achieve better throughputs if I connect to BTFon or BTOpenzone?
My question to the BT Support staff (for which they had no answer) is if I am enabling BTFon and BTOpenzone on my router, is that in some way reducing MY internal throughput in speed?
The BT HH 2.0 is promoted as an N-Series device - yet I cannot use it as such - and I make use of the BTFon community as I travel about, so I do not want to switch it off.
I know that I can connect via Ethernet to the HH, and do when I am static - however, I also stream some large files/videos around the house, for which N-Series is perfect - when it works!!!
Any advice / help gratefully received.

Wont connect using 802.11N

My imac can see the name of the network but refuses to connect to it using 802.11N. Its really odd because my Apple TV has no problem connecting to the router using 802.11N

I have the exact same problem but haven't been able to figure it out. My problem is that my C2D iMac 24 (white) will see 802.11n only network, but will not attach to it. Monitoring the network attachment process on Network Utility shows a few seconds of trying, then eventually gives me a small "instruction" saying "See Administrator". That's not so helpful.
If you were having the same problem and had figured it out, I'd love to hear it.
My wireless AP has no WEP or any Mac filtering enabled.

Is there any way to use embedded commands in text to create pauses when using text to speech in iOS 5? You can do it in OS X by typing [[slnc 2000]] to get a two-second pause.

Is there any way to use embedded commands in text to create pauses when using text to speech in iOS 5? You can do it in OS X by typing [[slnc 2000]] to get a two-second pause.

Thanks for the reply Russ.
Yes, I've considered adding titles and/or generators in the FCPX storyline, but this creates a need to render the entire timeline. As I'm juggling library locations and hard drive spaces I just didn't want to add a new render that will occupy a lot of space. It's also a bit of visual clultter for me, so my goal is to find the best workflow for adding this stuff on or after export.

Is there a way to force my new MacBook to use 802.11n only?

I am trying to force my new aluminum MacBook to only use 802.11n as I am experiencing slow connectivity. Does anyone know if this is possible?

niceshoes6 wrote:
Join the club. everyone is experiencing slow connectivity
Not "everyone" because I am not. All is just as it was with my original MacBook, and plenty fast. I am using Wireless-G (MacBook 2.4 is only machine here which has Wireless-n in it).
Phil

Airport Extreme 802.11n (with gigabit ports) locks up when using 802.11g

About a minute after I connect my 802.11g IBM X60 laptop to the wireless network, the AirPort Extreme with 7.2.1 firmware locks up. The light stays green, but all machines (including an 802.11n MacBook) loose wireless connectivity. It's extremely annoying and makes the base station unusable. I have to physically disconnect it from the wall and plug it back in for it to work again.
Has anyone found a fix for this?
It works fine when a single 802.11n Macbook is connected.

Changing it to 5Mhz didn't help. I unplugged my external HD from the router. Want to try to figure out what made it start locking up because it didn't do it when I got it two weeks ago, just started yesterday.
But I might be going to a mall where an apple store is, might just have them swap it out. It's hard to prove this type of thing, unless it's a known problem and they take your word for it.

Imac 17" 1.83ghz - OK, it's incompatible, but how can you use 802.11n???!

The Imac Intel G5 17" 1.83ghz does not work with airport extreme's draft 802.11n, for whatever reason. What are the ways to make it compatible? Currently using it on 802.11g but I do want to use the 802.11n.....
Any ideas?
Many thanks.

The Imac Intel G5...
Intel and G5 are 2 completely different things. You do not have a G5 you have an Intel-based iMac. It either has the "Core Duo" processor or "Core 2 Duo" processor.
You should take a look at some of the USB solutions offered by QuickerTek.

Macbook refuses to use 802.11n?

I have an 802.11n router, running in MIMO mode with WPA2/AES encryption, with only two machines attempting to connect to it. Both are running OSX 10.6.5:
My macbook air 1.6GHz (December 2010). This machine connects perfectly as 802.11n, every time.
My wife's 2GHz Macbook 2,1 (I think somewhere around mid-2007 manufacture). This machine has the n extension installed (I can't recall installing it, but network utility shows it as 802.11 a/b/g/n). Whenever I attempt to connect with this machine, connection initially fails, but it eventually connects as an 802.11g connection (as shown by option-clicking on the network icon). When it does connect - not very well - it slows the connection of the macbook air way down.
I'm guessing that if I could force my wife's machine to connect in n mode, everything would be OK. Does anyone have any suggestions?
What I've tried so far:
.deleting and re-enabling the wireless drivers in the network preferences panel
.making a new network location
.deleting all relevant plists
.repairing disk permissions
Relevant background information:
.the 'n' router only supports channels 1-12 (i.e. we can't force n by using non-g channels)
.this network is in a crowded apartment block - I can see around a dozen other networks in istumbler
.the router is using directional paired (MIMO) antennas to bounce the signal from one apartment to another off an adjoining building. Of course, this could in general be problematic; but the received signal strength is OK - not good - according to both istumbler and a separate linux metering program. And the MBA works perfectly well in the same locations.
.it's using channel 1; there are two g networks in the building also using channel 1, but according to istumbler, our signal is strongest of the three in the 'receiving' apartment (in channels 6 and 11, there are other stronger signals, so 1 is the only rational choice).
.the router is running in mixed, not greenfields, mode
.although the MB is only able to connect in g mode, istumbler on the MB still shows it as an 'n' network
.we have never encountered any previous wifi problems with the MB (but this is the first time we've tried to connect it to an n router)
.and just to repeat, the router is using WPA2/AES encryption, which should be compatible with 802.11n
TIA for any help

SOLVED!
Who in the world would have guessed??
Trendnet support provided this information:
<<Note: Due to chipset compatibility issues, if you choose WEP, WPA or WPA2-TKIP encryption this device may operate in Legacy Wireless mode (802.11b/g). You may not get 802.11n performance as these forms of encryption are not supported by the 802.11n specification. >>
I had used WPS2-TKIP, just by accident. I changed it to Authentication WPA-Auto and Cypher type auto, and now it works on 802.11n, as well as g!! Even on my Powerbook G3 and HP laptop.
Who would have guessed?

T42 Windows XP--BSOD When Near 802.11n

My PC crashes with the Blue Screen of Death (BSOC--IRQ problem) whenever it is in proximity of a 802.11n Wifi hotspot.
The crashes occur somewhat at random, but rarely can a boot-up go more than 15 minutes without the BSOD.
Sometimes the BSOD will happen during the start-up process.
What is the fix for this?
I know from surfing the Web that this also happens with Dell and some other brands, but I haven't found a good fix for my PC yet.

Hi Binky. Thanks for your reply. I don't have a direct answer to your question about the error message right now as I have been forced to temporarily revert to XP because of this problem. I can try to reproduce the error message this weekend (in fact I can produce a low-level log with ThinkVantage AccessConnections) when I have a chance to switch OS images. I do feel pretty confident at this point that I'm not dealing with an issue in the high-level user config parameters.
I also have some additional information to add to my initial post:
1. Earlier, I said that everything was working except 802.11n association. I now know that 802.11n does work, but only using 2.4GHz, so 802.11a/b/g work and [email protected] works, but 802.11n@5GHz does not. When using "mixed mode" on the 5GHz radio, I can connect only with 802.11a.... so with the identical client-side authentication credentials on the single 5GHz access-point config, Vista can access 802.11a, but not 802.11n.
2. All attempts were made with no third-party firewall or virus scanning software installed and with the Windows Firewall turned off completely. The Vista installation is a fresh one with all critical and recommended updates installed.
3. I don't recall whether I already mentioned this, but I made sure to use visible SSIDs since I've seen problems in the past using wpa_supplicant under Gentoo, Ubuntu, and XP when SSIDs were hidden.
Thanks again, and I'll try to provide more information when I can.

Windows 7 / 2008 duplicate static address when using 802.1x / MAB - ISE

Hi all!
ISE 1.1.3
Cisco 3750 switches
Windows XP / 7 / 2008 clients
I'm having some weird issues were if a client connects to a switchport and happens to be using a static IP address then the client warns of a duplicate address problem. Also the client will then only show the default gateway within ipconfig even though the IP address / mask is still in the GUI network properties of the adaptor. This is happening with Windows 7 and Windows 2008 devices.
Windows XP clients don't get the issue.
Some clients will use 802.1x native supplicant and some will be authenticated based on MAB. Not noticed the problem with 802.1x clients but it always occurs on MAB.
I came across a similar issue here:
http://networkingblog.vvlabs.com/2012/07/cisco-ise-duplicate-ip-address-windows-7.html
Going of that blog I tried using the "ip device tracking delay probe delay" command but the switches don't recognise the "delay" keyword.
The switches are 3750 switches running version 12.2(58)SE2.
All I have is "count, interval, use-svi" as extra options.
Catalyst 4500 switch guide has "delay" option but no "count, interval or use-svi".
The only way I have managed to avoid the problem is using the second solution which is a registry hack on each client. This is fine for the odd server but not realistic when there will be hundreds of other clients.
Any ideas?

Hi
We are doing 802.1x for clients using the Windows supplicant. For clients not using supplicants we are using MAB. So the print servers and printers use MAB.
Extract of config...
aaa new-model
aaa authentication login default local
aaa authentication dot1x default group radius
aaa authorization network default group radius
aaa authorization auth-proxy default group radius
aaa accounting update periodic 5
aaa accounting dot1x default start-stop group radius
aaa accounting system default start-stop group radius
aaa server radius dynamic-author
client x server-key 7 x
client x server-key 7 x
aaa session-id common
clock summer-time BST recurring last Sun Mar 23:00 last Sun Oct 23:00
system mtu routing 1500
vtp mode transparent
authentication mac-move permit
ip routing
no ip domain-lookup
ip device tracking
dot1x system-auth-control
dot1x critical eapol
spanning-tree mode pvst
spanning-tree extend system-id
vlan internal allocation policy ascending
interface FastEthernet1/0/1
description ### Dot1x with MAB fallback ###
switchport mode access
switchport voice vlan 2
ip access-group ACL-DEFAULT in
srr-queue bandwidth share 10 10 60 20
priority-queue out
authentication event fail action next-method
authentication event server dead action authorize vlan 1
authentication event server alive action reinitialize
authentication host-mode multi-auth
authentication open
authentication order dot1x mab
authentication priority dot1x mab
authentication port-control auto
authentication periodic
authentication timer restart 0
authentication timer reauthenticate server
authentication violation restrict
mab
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
dot1x pae authenticator
dot1x timeout tx-period 5
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
ip http server
ip http secure-server
ip access-list extended ACL-DEFAULT
remark Deny access to new network
deny ip any 172.x.x.x 0.0.0.255 log
remark Allow everything else to other networks
permit ip any any
ip radius source-interface Vlan2
logging esm config
logging host x transport udp port 20514
logging host x transport udp port 20514
radius-server attribute 6 on-for-login-auth
radius-server attribute 8 include-in-access-req
radius-server attribute 25 access-request include
radius-server dead-criteria time 30 tries 3
radius-server vsa send accounting
radius-server vsa send authentication
radius server ISE-1
address ipv4 x auth-port 1645 acct-port 1646
key 7 x
radius server ISE-2
address ipv4 x auth-port 1645 acct-port 1646
key 7 x

Can I Use 802.11n Base Station and 802.11n AirPort Express in an 802.11 ac Time Capsule Main Base Station WDS Network?

I havea "wirelessly challenged" 2-story home and need to extend the range. Currently I have an 802.11n Main Base Station with an 802.11n Airport Express Remote. It's not getting the job done (upstairs connection is weak).
I am considering getting an 802.11ac Airport Time Capsule to help, even though I currently only have devices with 802.11n wireless connectivity (future-proof a little).
I an planning on setting up a Wireless Distribution System (WDS) Network:
1.) Setting up the Time Capsule as the Main Base Station connected to a Cable modem
2.) Reconfiguring and Setting up the current AirPort Extreme 802.11n as a Relay Base Station
3.) Reconfiguring and Setting up the current AirPort Express 802.11n as a Remote Station
I cannot "hard wire" one Base Statio to the other.
Will this work?

Will this work?
Unfortunately, no. WDS is a older, very inefficient way to extend the wireless network signal.
As such, newer operating systems like Lion, Mountain Lion and Mavericks do not even offer settings for this older WDS type of network.
In addition, the new Time Capsule has no capabilities to use WDS settings at all, even if you used a Mac with another operating system to try to set things up.
Even if it were possible to set up a WDS network, the speed on the network would be incredibly slow. As you know, WDS only operates at "g" wireless speed levels. Each "relay" or "remote" that you add to the network each cuts that bandwidth or speed in half.
With a WDS "main", "relay" and "remote", the network would be operating at about 14 Mbps......a tiny fraction of what the devices would be capable of providing normally.

Forcing Apple TV to use 802.11n

My wireless network is as follows.
Airport extreme connected to internet via cable modem.
Airport express configured as remote WDS base station.
Apple TV connected via wireless to network.
My problem.
Both the airport express and the airport extreme are within range of my Apple TV however the Apple TV appears to connect to my wireless network via the airport express limiting it's speed to 802.11g. The airport extreme capable of 802.11n is clearly within range of my Apple TV and I would like it to only connect via 802.11n. Is there any setting within the Apple TV to force it to stay on the 802.11n network even if the signal from my airport express may be stronger.
20" iMac core duo 2.0Ghz, Black Macbook core duo 2.0Ghz, 17" iMac 1.8Ghz G5, Powermac G4 1.0Ghz Mac OS X (10.4.9) Apple Extreme (pre-n), Airport Express, Apple TV

DML,
RE:Another option would be to set up the Extreme to use Access Control, limiting it to specific machines, by entering MAC addresses. If you don't enter the Apple TV's MAC address into the Express, would it be forced to find the Extreme, where it has 'permission' to access the network ?
That was an awesome idea and I think it might solve my problem. I setup the access control list on my express to only accept connections from my macbook. I'll post again after some further testing with my Apple TV. Many Thanks.
20" iMac core duo 2.0Ghz, Black Macbook core duo 2.0Ghz, 17" iMac 1.8Ghz G5, Powermac G4 1.0Ghz Mac OS X (10.4.9) Apple Extreme (pre-n), Airport Express, Apple TV

Audio paused when using Widget

Hi There,
I am using an acordion interaction/widget. I have audio recorded at the slide level introducing the widget. However, when I play the slide it immediately pauses and no audio is heard.
I take out the widget and the audio plays fine. Does anyone know why the interaction/widget seems to be pausing the slide/audio?
Thanks so much,
Julie

I have a workaround: instead of using slide audio, try using the new command 'Play audio' on entering the slide. Audio will play in that case.
Lilybiri

Freezing or Long Pauses when using Phone

I am noticing that when I go to use my phone for email and TM , sometimes it stalls in the process of processing a letters entry, somtimes it completely stays frozen.
any ideas or ways to eliminate this ?
Is the phone flawed or is it defective?

I've noticed that my iPhone bogs down some at times when receiving email including the keyboard - especially when receiving a number of messages and if any of the messages include an attachment or attachments of any significant size.
When responding to a post here on my iPhone when connected via EDGE before the page completely loads, the keypad will have some pauses which goes away after the page has completely loaded.
I suggest trying a Reset, which is done by pressing and holding the Home button and Sleep/Wake or On/Off button simultaneously until you see the Apple logo and then release - ignoring the slide to turn off prompt when doing so.

Any way to confirm Apple TV is using 802.11N?

I just went out and bought an Airport Extreme (yes, I'm being assimilated)... How do I confirm the Apple TV is using Draft-N?

I'm not sure there is an easy way, but you could set up your extreme to use n only, that way if your tv still sees your network, you know it's using n.
(Airport Utility/Airport/Wireless/Radio Mode)

Packet loss / pausing when using 802.11N (Intel 6300)

Similar Messages

Maybe you are looking for