Dell Wireless(DW1530, DW1540) issues with VoIP on 802.11n

We are having issues with VoIP, using Microsoft Lync, over wireless. We are experiencing static, jitter, dead air, and dropped words during calls. We have a Cisco wireless infrastructure consisting of a 5508 controller and 2602 access points. We're currently runng OS version 7.5.102.0, but the issues also occurred when running OS version 7.4.100.0.
On the client side, we've narrowed the issues down to Dell Laptops(Latitude E6430, Latitude D640, Latitude E6420) with Dell Wireless/Broadcom(DW1530, DW1540) network adapters that are 802.11n capable.
Latitude E6430
OS - Windows 7
wireless adapter - DW1540
driver - 5.100.82.112
Latitude D640
OS - Windows 7
wireless adapter - DW1530
driver - 5.100.235.12
Latitude E6420
OS - Windows 8
wireless adapter - DW1530
driver - 6.30.58.26
All of the drivers are the latest offered from Dell.
If we disable high throughput (802.11n) on the access points and force the clients to connect with 802.11a or 802.11g, we don't experience any issues.
If we use another manufacturers 802.11n USB NIC in the same hardware, we don't experience any issues.
This seems to be a compatibility issue between Dell Wireless(Broadcom) 802.11n capable network adapters and Cisco access points. I'm guessing this issue is with all 802.11n traffic, but we're only noticing it during Microsoft Lync voice calls.
Has anybody else had this type of problem and found a resolution?

Has anybody else had this type of problem and found a resolution?
I've seen some Intel chips that simply "misbehaves" when operating in 802.11n. Going to the laptop manufacturer's website to download the firmware is next to useless. Going to the NIC manufacturer's website to download the LATEST firmware is more reliable.
There's a significant version "gap" between the firmware published with the laptop manufacturer vs the ones with the wireless NIC.
I suggest you go to Broadcom and load the latest firmware in one or two machines just to test.

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Speed or Performance Issue with Airport Extreme 802.11n

Background:
Router 1: Linksys Wireless G 2.4GHz Router WRT54G (have been using for 1.5 years)
Router 2: Airport Extreme 802.11n Base Station Model: A1143 (just arrived)
Macs: Intel MacBook Pro & MacBook both Newtwork Adapters upgraded to 802.11 a/b/g/n and verified via "Netwrok Utility". The Netwrok Utility also displays the link speed at 54 mb under interface info. when the Linksys G router is selected and the link speed at 144 mb when the airport extreme n is selected.
Observation & Issue:
Currently, for testing both network routers have been used seperatly (connected directly via the cable modem) and speeds for each latop verified via http://www.speakeasy.net/speedtest/ and normal "human" usage web surfing observations via Safari. Results below:
1. When using the Linksys G router both the MacBook and MacBook Pro appear to be performing well and responsive with little or no wait on graphically/media intense sites such as apple.com
The speakeast.net/speedtest/ (using the NYC hub close by) downoad test displays 8MB to 10MB speeds
2. On the otherhand, when using the Airpot extreme both the MacBook and MacBook Pro appear to be performing slower than usual with higher waits for image and page downloads.
In addition, the speakeast.net/speedtest/ (using the NYC hub close by) downoad test displays 2MB to 3MB speeds. Lower than what we experienced using the older router.
Request for advide or help:
1) Is this normal? Assuming it is not, what esle can I look at that can help me determine the root cause. The Airport Utility does not offer much assistance in this matter.
2) Thus far I have opted to revert back to my Linksys g router. However, before returning the product... any other adivce on a potential miss in the configuration or setup would be of great help.
3) Other's experiencing the same?
MacBook Intel & MacBook Pro Intel Mac OS X (10.4.8) SUing Comcast Cable Modem

Contacted Apple Support (have an AppleCare account) tonight and the issue has been resolved with the caveat that I cannot have a mixed (g & n) radio mode on the same airport extreme base without significant loss of performance. These are the steps I was walked through to resolve my particular case:
1) Verify that your hardware is indeed upgraded to use n (see steps in my original post)
2) Open the AirPort Utility (new program that was installed from the install disc under applications/utility)
3) Click on the Airport Extreme image on the right hand column to open the Airport Extreme settings
4) Select the "Wireless" tab, then "Radio Mode" drop down and select 802.11n only (5 GHz)
5) Select Update to apply new settings.
Results:
When running the speakeasy.net/speedtest I am seeing results that are indeed better. However, the test shows that the top speed lowers a bit and jumps back up unlike when I am on my old g router, which does not have such a jump.
This test is not perfect but a good gauge. If anyone has any other ideas to test performance more accurately, please do let me know.
Note: Only n enabled devices now work with the n router. I will keep my old g router as a backup and for my work pc laptop.
Hope the above helps and thanks.
MacBook Intel & MacBook Pro Intel Mac OS X (10.4.8)

Are there any compatibility issues with AirPort Extreme 802.11n and Maverick OS X

Are there any reported issues?

Welcome,
The only issue is that the "old" Airport Utility (5.6/5.6.1) doesn't work with Maverics and you have to use the 6.3.2 version.
Having said that I use it with 6 AP (mixture of AX's and XE 2s) just fine with over 20 devices hanging off them and all Mac on Maverics.
It may depend on which Airports you have, if they are supported by the new Utility you should be fine, as ever YMMV!
Regards,
Shawn

Does airport extreme 802.11a/c work with airport express 802.11n

does airport extreme 802.11a/c work with airport express 802.11n

"You can use the AirPort Express to extend the signal provided by the new AirPort, but the Express will not extend "ac" wireless since it does not have that capability. The Express will extend an "n" wireless signal if that helps."
This is what I am trying to understand.
So AXTRM w/ sep SSID for 2.4 (b/g/n) - call it SSID1 - and 5GHz (ac) call it SSID2 - WiFi Explorer confirms AC mode on 5G.
Using an AXPRESS to extend - I have the option of SSID1 b/g/n *and* the 5GHz ac SSID2 in the pulldown (it sees both?) --> if I select SSID1, it also extends this same SSID in 5GHz (both showing b/g/n) >> so I now have 3 signals on SSID1 (XTRM 2.4G, XPRS 2.4G and XPRS 5G) b/g/n and one signal on SSID2 (XTRM 5G AC) ac
If I select the 5Ghz ac SSID2 to extend - it prompts me "do you also want to extend (the 2.4GHz SSID1)?" --> select yes and I now have 2 signals for SSID (XTRM 2.4G & XPRS 2.4G) b/g/n and 2 signals on SSID2 (XTRM 5G 802.11ac & XPRS 5G 802.11 a//n)
Is the 5G SSID2 actually being extended from the Airport Extreme to the Express?
The reason I bring this up is I am having a lot of issues since iOS8 came out (especially on iPhone 6). Everything I am reading is pointing to when people have 2 AP's set to use the same SSID. When you walk to a part of the house where 5G 802.11 ac signal marginalizes, the phone does not immediately hand over to the 5G 802.11 a/n Airport Express.
My thought was separate the SSID's but to me, if the Express can't extend 5Ghz from the Extreme, it's taking a step backwards. I am better off getting a more powerful router like an ASUS and going with one AP, drop the WiFi roaming altogether
Any thoughts?

Will Linksys wireless routers be updated to the final 802.11n spec when its finished?

Will Linksys wireless routers be updated to the final 802.11n spec when its finished? I read that most can be updated to the final spec with a firmware update.

I can't see why they wouldn't be. There'd be a whole lot of people upset if they didn't...
A+ Certified, over 15 years of hands on computer and home networking experience...and I still get lost!

Dell Laptops E7440 & E7240 - Issues with connecting to MDT 2012 deployment share

Hi,
Good afternoon.Need help on this please
-Test laptops Iam using are 2 * E7440 and 1*E7240. One laptop of model E7440 has our image installed and other two (1*E7440 & 1*E7240) are shipped from Dell with default Win 7 64 bit OS.
-Test desktops Iam using are Dell Optiplex 3020 & Dell 3010 . Both models have our own images of Win 7 64 Bit.
-Laptops and desktops are on same network .
-For OS deployments we have MDT 2012.
-While there are no issues with desktops, all the laptops mentioned above don’t connect to MDT deployments share . The detailed error message I get when I run a litetouch ISO is ‘A connection to the deployment share could not be made. Connection OJ.Possible
cause:invalid credentials. Retry : Try again to connect to the deployment share.’
-Have injected all possible network & storage drivers mentioned by Dell & Intel into MDT boot image but the problem still persists. Still WinPE doesn’t detect network adapter wherein IPaddresses are not picked in WinPE mode.
-Have been testing each and every driver by manually loading them into Winpe mode to see if they pick up the IP addresses and I finally found one driver by name ‘e1d63x64.inf ‘ which I downloaded directly from Intel website. This one is picking IP Address
in WinPE mode when loaded manually. Also have tested the connectivity to MDT server in WinPE mode with net use command and it was successful.
Have injected this driver into MDT Laptop deployment share, regenerated the ISO and tried again however Iam still unable to connect to the deployment share with litetouch ISO.
The above driver is very much part of set of network drivers on Dell website too.But it doesn’t work.
-Have also tried combination of network & storage drivers from Dell website (along with the above one mentioned ) injecting them into the MDT laptop boot image but no luck.
-Every time I make changes to drivers in boot image,I update deployment share & recreate boot image .
-This very litetouch iso connects to MDT deployments share for Dell desktop models 3010 & 3020 but have issues with laptop models E7440 & E7240. This means any connectivity or access issues can be ruled out. Also no problem with our image cause
this happens even with brand new shipped laptops with your inbuild win 7 OS.
-Have tried all options suggested on internet,tested all the drivers suggested but no luck.
-For example I tried latest E7440 netwrok & storage drivers ,Dell Win PE drivers,drivers from Intel website,etc individually as well as in combinations but the issue persists.
-If you google many express similar issues with these laptop models.
Though I used the drivers suggested by various bloggers,nothing worked for me.
Any help on this is appreciated.Thanks in advance.

Hi,
I have several E6420, O3010 and since a week also some E7440 and E7240 on site.
I never had issues using the current Dell PE package for MDT.
At the moment my PE contains only the drivers from the Dell PE 3.0 package (WinPE3.0-Drivers-A13-D67JC)
and all my systems mentioned abobe have no issues connecting to the deployment share.
(btw: I have also some older E6400, E6410 and O390 I do no longer support, they
are supported by the pack Dell-WinPE-Drivers-A05.CAB according
to the Dell site, but I just started a deplymenst on a E6410 and is is also workign with just the latest PE pack)
I'd
suggest you start over with your deplyoment share using at least MDT2012 Update 1.
Create a folder "PE" under "Out-of-Box Drivers" and extract latest Dell PE pack and import he drivers there
Create a selection profile e.g. "PE Drivers" and include just the "PE" folder created above
When configuring the Windows PE settings of your deployment share select "PE
Drivers" selection profile for the driver injection in the "Drivers and Patches" to keep the PE image free of not needed drives.

RV110W issues with VOIP service

Hi
I'm new to the forum and tearing my hair out here. We have an RV110W with a mix of computers and VOIP handsets.
Strange thing is that after 16 minutes of a VOIP call, the port seems to get swapped and the call hangs.
The VOIP provider, who is pretty worthless by the way - don't use Vivo Telecommunications - has decided that the problem resides at the firewall, They say:
The port swapping will be caused by the firewall, there are 1 of 2 causes: SIP Awareness; there are several things that can affect this most firewalls have SIP Alg but it can be disabled, also the NAT refresh time needs to be set correctly.
They have suggested some commands to apply -
Cisco PIX firewall – run the command “no fixup protocol sip 5060”
Cisco ASA 7.2+ – run the command “no inspect sip”
Has anyone else seen this issue?
If so and you think these commands might work, can someone point me to the correct way to do that? I am really only used to dealing with the web-based UI to configure the firewall.
Thanks
Stephen

Stephen
The router has no settings for that. Make sure you have the latest firmware installed, there may have been an issue with the older firmware(s).
If the router is causing the issue then it has a bug. If you have another router, try it and see if you get the same result. If not, connect a VoIP handset directly to the ISP and make a call. If it breaks after 16 minutes, you know that the issue is with the ISP or VoIP provider, not the router. Another option is to disconnect everything from the RV110W (for security) except for a VoIP handset. Turn the firewall off on the router and try a call.
If you find that the problem is in fact caused by the RV110W, please open a case:
www.cisco.com/go/sbsc
- Marty

RV082 - Having issues with VoIP phone

Our office uses and RV082 and recently installed an IPECS PBX system with VoIP support. We have a one-to-one NAT set up to allow access from outside to the IPECS shelf that works fine. When we hook an IP phone at a remote location the IPECS system sees the phone and assigns it an IP but the phone itself will not come up. We tested the same phone against another office and different router and the phone came up fine, so it's not the phone. We went as far as dropping the firewall to check against the settings but the phone still didn't come up. The RV082 doesn't have any settings directly related to H323, so we're at a loss as what needs to be tweaked to get the phone up and working. We've looked in forums but haven't found a solution. Anyone run across/resolve this before?
Thanks.

Hi Ginabuonfiglioruth,
Let's get that screen up and running! I know that it can be frustrating if your screen doesn't give you the option to hang up. What LG device are you using? Sounds like it could be the screen timeout option. I would recommend going into your settings, then looking for screen. I am sure you find the resolution here. Keep us posted.
Thanks, BobbyS_VZW
Follow us on Twitter @VZWSupport

Problem with Wi-Fi. (802.11n)

Hi
I just got new 802.11n capable wi-fi router using WPA2(AES) security.
The frequency for 802.11n is 5GHz.
My iPad receives the signal (802.11n) without problem and working fine, but my MacBook Pro (Late 2008 Uni-Body) does NOT receive 802.11n. It only receives 802.11g which coming from same router.
I don't understand why my MBP can't receive the signal at all. I tried typing in the network name manually and it didn't work either.
Mac it self is close enough to catch the signal and iPad is catching it in same room so it shouldn't be problem.
One thing I don't understand is that AirPort at System Profiler shows "Supported PHY Modes: 802.11 a/b/g" but on Network Utility.app it shows "AirPort (en1) Model: Wireless Network Adapter (802.11 a/b/g/n)" so I think my MBP is capable receiving 802.11n signal.
Can anybody help?
Thanks in advance.

Hi Achan Siro,
Welcome to the Support Communities!
The article below may be able to help you with this issue.
Click on the link to see more details and screenshots.
Resetting an AirPort Base Station or AirPort Time Capsule FAQ
http://support.apple.com/kb/HT3728
Cheers,
- Judy

Extending a network with two AEBSn 802.11n base stations

Problem: Laptop on remote Airport Extreme (n) doesn't get internet, but can see entire network.
I have set up 2 new Airport Extreme's (n). One is connected to the cable modem and set to "create wireless network" and "Share a public IP address" . The other is about 80-100 feet away and set to extend the network.
A PowerBook G4 is connected to the remote Airport Extreme and gets an IP address correctly, and can connect to a computer on the primary Airport Extreme. Transfer rates from the remote laptop to a computer on the primary Airport Extreme are strong (15-30 Mbit).
According to the Airport utility, link speed between the two Airport Extreme's fluctuates between 104 and 130 Mbit.
The problem is that the computer connected to the remote Airport Extreme can't get out to the internet. Computers connected to the primary Airport Extreme get a very fast connection to the internet. What am I doing wrong?
Airport Extreme 802.11n Mac OS X (10.4.9) AEBSn

Let's double-check your AEBSn's settings...
AEBSn - Extending a wireless network Setup
- If practical, place the base stations in near
proximity to each other during the setup phase. Once
done, move them to their desired locations.
- Open AirPort Utility and select the base station
that will connect to the Internet.
- Choose Manual Setup from the Base Station menu, or
double-click the base station to open the
configuration in a separate window. Enter the base
station password if necessary.
- Click AirPort in the toolbar, and then click
Wireless.
- Choose “Create a wireless network” from the
Wireless Mode pop-up menu, and then select the “Allow
this network to be extended” checkbox.
- Next, select the base station that will extend this
network, and choose Manual Setup from the Base
Station menu, or double-click the base station to
open its configuration in a separate window. Enter
the base station password if necessary.
- Choose “Extend a wireless network” from the
Wireless Mode pop-up menu, and then choose the
network you want to extend from the Network Name
pop-up menu.
- Enter the base station network and base station
password is necessary.
- Click Update to update the base station with new
network settings.
(ref: Page 45 of "Designing AirPort
Extreme 802.11n Networks.
I followed the exact instructions above with one AEBSn connected to the DSL modem and "creating the wireless network", and a second AEBSn "extending the network". Depending on the location (1st or 3rd floor), my PowerBook G4 connects perfectly to the AEBSn with the stronger signal.

I have a AirPort Extreme Base Station with Gigabit Ethernet 802.11n ?

I have the 802.11n Airport Extreme Base it went bad so Apple Sent me a new one to put into my
office where I have a iMac 24" 2.4ghz with really fast internet
I also HAD a AirPort Express Base Station with 802.11g and AirTunes G not N so when I received the
new 802.11n Airport Extreme I sold the Airport Express 802.11g now my Macbook Pro 17" 2.33mhz
which is in my family room and that is also where the Airport Express with iTunes was located
now my internet is like really slow on the MBP 17" I have 5 bars in the pizza menu bar but my
internet speed is really BAD on the MBP 17" and I have 16mg speed on the net
+BIG ? DO I NEED TO BUY A 802.11n AirPort Express Base Station with 802.11n and AirTunes??????+
TO EXTEND THE RANGE OF MY AirPort Extreme Base Station with Gigabit Ethernet Which is in my
Office where my iMac 24" 2.4ghz is located and the internet zooms on the iMac but not my
my Macbook Pro 17"
Please help as I don't want to spend money on another 802.11n if it will not extend
I
Message was edited by: macman60

So you agree to the lose of the Airport Express removal has caused me to lose enough of a signal to make the Internet...
Sorry but I'm not sure what this long run-on sentence is trying to say.
You asked if the network could be wirelessly extended and that is what I replied to.

Numerous problems with Airport Express 802.11n with DSL and extending WLAN

Hi all,
I have the following hardware:
802.11b/g Airport Express with firmware 6.3
802.11n Airport Express with firmware 7.3.2
MacBook Pro
iBook G4
Mac Pro PowerMac 2x450 G4
Up until now I had been using the old Airport Express as the base station connecting to my PPPoE DSL line, and it worked fine. I wanted to extend the range of this network, and got another newer Airport Express, the 802.11n model.
First I tried to use the 802.11n to connect to the Internet and the old one to extend the network. Turns out the old one can't be used to extend a network, which is bad enough, but the 802.11n one refuses to connect via DSL for more than a couple minutes, then drops the Internet connection.
So I tried downgrading the firmware to 7.3.0 and 7.3.1, but it didn't help. Did a hard reset, factory default reset, soft reset, nothing worked.
Next I tried swapping the two, putting the old Express back on the DSL line and the new one as the bridge to extend the network (using WPA2). But the 802.11n complains that it can't access the network and flashes amber.
Again, tried upgrading to 7.3.2, downgrading to 7.3.1 and 7.3.0, hard reset, soft reset. Nothing works.
Any ideas?
Cheers,
Fairfax71

I don't see any option in the Airport Admin Utility for the old Express for creating a WDS network, only to participate in one...?
That is the option you want to choose.
You could use the newer AirPort Utility to configure the older AX.
Sorry, forgot to ask something else: The 802.11n Express is able to join the WLAN created by the 802.11b/g Express as a client, but not extend it, is that what you're saying?
No. If you join the network the AX is simply acting as another wireless client and is not extending the network. The "extend" option is not available since the older AX is not 802.11n capable. You must use WDS.
Use AirPort Utiity and follow these steps for both AX's. To set up the main AX:
Click the AirPort status menu in the menu bar and choose the wireless network created by the base station you want to set up as the main base station.
Open AirPort Utility (located in the Utilities folder in the Applications folder on a Mac, or in Start > All Programs > AirPort on a Windows computer). Select the main base station, and choose Manual Setup from the Base Station menu, or double-click the base station to open the configuration in a separate window. Enter the base station password if necessary. If the base station is using the default password of public, you will not be prompted for a password.
Click the Wireless button, and then choose “Participate in a WDS network” from the Wireless Mode pop-up menu.
Click WDS and then choose “WDS main” from the WDS Mode pop-up menu.
Select the “Allow wireless clients” checkbox if you want client computers to connect to this base station.
Click the Add button and enter the MAC address of the base stations you want to connect to this base station. If there is a base station listed that you’d like to remove from the list, select the base station and click the Delete (–) button.
Click Update to send the new settings to the base stations in the WDS. By default, the “Allow wireless clients” checkbox is selected. If you deselect the checkbox, and later want to change the settings on the base station, you must connect to the base station’s LAN port with an Ethernet cable. You will not be able to connect to the base station wirelessly.
To set up the second AX to connect to the main AX:
Open AirPort Utility. Select the AX, and choose Manual Setup from the Base Station menu. Enter the base station password, if necessary. If the base station is using the default password of public, you will not be prompted for a password.
Enter the same network password as the main base station, if necessary.
Click the AirPort button, and then click Wireless. Choose “Participate in a WDS network” from the Wireless Mode pop-up menu, and choose the same channel as the main base station from the Channel pop-up menu.
Click WDS and choose “WDS remote” from the pop-up menu.
Enter the MAC address of the main base station in the WDS Main field. The MAC address is also referred to as the AirPort ID and is printed on the label on the bottom of the base station.
Click Update to transfer the settings to the base station.
This can be found on page 42 of "Designing AirPort Networks Using AirPort Utility" (direct PDF download).

Extending range of Linksys WRT310N router with Airport Express 802.11n

I am trying to extend the range of an existing wireless network set up with a WRT310N router with an Airport Express 802.11n - I've tried choosing both "Participate in a WDS network" and "Extend a wireless network" and both have run into problems.
Any advice would be greatly appreciated!
Thanks, Amy

amysinsh, Welcome to the discussion area!
Sorry but this is not possible.
It would be possible if the wireless network was created by another AirPort Express (AX), anAirPort Extreme base station (AEBS), or a Time Capsule.

Having a problem in conecting with airport extreme 802.11n wi-fi on ipad2, having a problem in conecting with airport extreme 802.11n wi-fi on ipad2

when i was trying to conect with the airport extreme 802.11n wi-fi on my ipad 2, having problem in my ipad saying that your airport base station does not have a valid IP address. make sure your airport base station is connected to your broadband modem or local network....n also another message is this airport base station doisn't have any DNS server addresses and might have trouble connecting to the internet... bt in laptop can use this internet without any having problem.... so freinds any idia to solve this problem.??

Hi Achan Siro,
Welcome to the Support Communities!
The article below may be able to help you with this issue.
Click on the link to see more details and screenshots.
Resetting an AirPort Base Station or AirPort Time Capsule FAQ
http://support.apple.com/kb/HT3728
Cheers,
- Judy

Replace Airport Extreme with new AE(802.11n) on G5?

My existing wireless network includes the last version of the Airport Extreme (b/g?) and an Airpot Express is working fine. But since I'm planning to go to an Intel-based Tower sometime in the near future, I bought the new AE(n). I haven't installed it and wanted to check here first to see if it's worth the trouble before I have a MAC that can take advantage of the newer tech.
Is there any advantage for PPC-based MACs? Is there a way to safely save the configuration so I can revert to my existing setup if the new one proves problematical?
Thanks!

well,
my network is exactly the same as your so I'll give it a try. First update to the latest version of the OS (10.4.8) & run software update till you have nothing else to update. I configured mine using the setup and then going back and tweaking some of the settings. 1, find a channel that no-one is using in you area. sometimes wireless base stations on the same channel cause interference with each other. 2, after i set up my new airport extreme and setup the express to extend the network. i did find that the setup program setup the express as 802.11b only and it did slow up my network a bit (bump it to 802.11B/G). overall the performance was ok. I was getting 700kbs with my old extreme set up my way and with the new extreme I've been averaging 750kbs to 800kbs (iTunes tv show download)on my iMac G5. about the only thing that concerns me IMO is that with the old extreme, you could set the base station to any type you wanted to in my case "802.11G only" was the way I set up my old extreme. with the new one you only get 2 choices 802.11N or 802.11N B/G compatabile.
either way, I'm happy with my new base station. and I'm sure that when you do buy your next mac you'll certainly see a speed increase.

Dell Wireless(DW1530, DW1540) issues with VoIP on 802.11n

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