Leopard Wireless Speed Decrease...?

If someone out there can test a similar setup for me I would appreciate it.
Using a
1. G5 Dual 2.5 (10.5.1) with an Airport Extreme a/b/g card (using G).(it is the only client on network)
2. Airport Extreme N Base Station with g compatible band.
3. Cable Connection of 20Mbps down/2.5 Mbps up
4. Using: http://ma.speedtest.rcn.net/ to confirm speeds(although you have to be an RCN subscriber) any respectable speed test will do.
5. Try wireless and record speeds (mine hasn't broken 11Mbps, (although it is ranging from 4-9 on average)
6. Plug in Computer directly to base station via ethernet and record speeds. (I'm getting my normal 20Mbps) averaging 16-19.
This computer was achieving normal speeds of 20mbps via WIRELESS prior to leopard. Now it only works via ethernet or is slow.
I have tried swaping a few kext files,preference files, etc, but really don't know where to start.
**I'm almost positive it is on the *computer side of things*, not the basestation.
Any help would be greatly appreciated. I would like to know if others are experiencing a speed decrease with leopard via wireless.(**you probably wouldn't know unless your going over 11-12Mbps, because that is where it seems capped.)
My MBP is already been in repair for a week (waiting on a part) and I do not want to jump through hoops for a false hardware issue when it is either a bug in 10.5.1 or a simple fix via terminal or some other firmware,firewall,extension, pref, etc..Thanks

Hi Shaun...by default the second Firewall is the titled ipfw, this wall can be configured through the Terminal, there are some sites the give you the complete manual on how to set it up, but basically it showed its zany head during the Panther 10.3 install where upon users where not able to configure the System preferences' own firewall (everything was grayed or locked out and was unable to be opened) except for the terminal command, There was a big hooplah about it, but basically OS X contains two, the ipfw is a FreeBSD app. that is complex and its for concise configuration of ports. Im sure there is an old thread about here or in macrumors.
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/firewalls-ipfw.html
http://seaotter.berkeley.edu/cab/mac-firewalls/
basically it could conflict with the main firewall, in my logs it showed that it denied the router's ip address, upon flushing of the rules it allowed it, while still maintaining the security of the main Firewall, Also in Leopard full bars mean Data rate to the router, unlike in Tiger it meant signal strength, so you can be connected to the router but not be connecting to the internet (been there),
in the Terminal command you may find the ipfw manual pages, to set precise port settings etc. the System prefs firewall is more UI friendly, but its like buying wholesale, instead of a precise item being purchased. So in your case its not blocking anything, because your main Fw is functioning already, but it is something good to know. like I posted before migrated accounts may carry over these configurations from the ipfw that worked in Tiger but not in Leopard because of the new sets of rules etc.
Message was edited by: Mario Lobo

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Time Capsule Wireless Speed degradation

Hi everyone,
I have a TC 500 GB, creating a Wi-fi network.
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The problem is that the Wireless speed of my connection get slow day by day, and after few day the speed is completely unaccetable.
To restore the original speed I found out two solution:
-HW reset (disconnect the power supply and then pressing the reset button before reconnecting to the power supply);
-change the firmware (I am continuinously changing between 7.3.1 and 7.3.2).
Does anybody face the same problem? I have already tried to change the wi-fi channel, the wirelles type (2.4 GHz or 5 GHz) but nothing changed.
Thanks for the help
Andrea

I've had the same problem and I'm on cable. But I have had this degradation of speed on the previous Apple Extreme airport as well as the Time Capsule I have.
I have cable. If I plug directly into the cable modem I will get 30-32 Mbps consistently. The claimed speed I am paying for.
But going to wireless, speed decreases over the day and I have to restart the TC. But as I said I had to do the same with the Extreme n Airport too.
Also no matter what, the Airport's have only ever delivered at best, 18Mbps. They never supply the full speed of the internet connection.
I personally believe the reason the speed decreases is heat. These beautifully designed Airports do get very hot. And I think this is why the speed decreases over the course of the day. If I leave it unplugged over night and boot it up in the morning, I get almost my full 30Mbps for a short time with the cold unit. But then through the day, as I work and actually can tell the connection is slowing, I run a speed test and I'm down to 18Mbps or even slower.
So I restart.
I think it's heat. Just my guess though.

Leopard Speed Decrease?

Hi,
Have an APn. Haven't changed any settings on AP, but after installing leopard I can't break 11mbps.
I usual get 16-18Mbps via airport but no dice.
This is the weird part: If I plug my computer into the base station via ethernet I get normal speeds, but once I try using wireless it drops back down.
Multicast is set at 11, Channel Auto(but tried a few for measure), Robustness off, What gives? Is this a bug in leopard?

If someone out there can test a similar setup for me I would appreciate it.
Using a
1. G5 Dual 2.5 (10.5.1) with an Airport Extreme a/b/g card (using G).(it is the only client on network)
2. Airport Extreme N Base Station with g compatible band.
3. Cable Connection of 20Mbps down/2.5 Mbps up
4. Using: http://ma.speedtest.rcn.net/ to confirm speeds(although you have to be an RCN subscriber) any respectable speed test will do.
5. Try wireless and record speeds (mine hasn't broken 11Mbps, (although it is ranging from 4-9 on average)
6. Plug in Computer directly to base station via ethernet and record speeds. (I'm getting my normal 20Mbps) averaging 16-19.
This computer was achieving normal speeds of 20mbps via WIRELESS prior to leopard. Now it only works via ethernet or is slow.
I have tried swaping a few kext files,preference files, etc, but really don't know where to start.
**I'm almost positive it is on the *computer side of things*, not the basestation.
Any help would be greatly appreciated. I would like to know if others are experiencing a speed decrease with leopard via wireless.(**you probably wouldn't know unless your going over 11-12Mbps, because that is where it seems capped.)
My MBP is already been in repair for a week (waiting on a part) and I do not want to jump through hoops for a false hardware issue when it is either a bug in 10.5.1 or a simple fix via terminal or some other firmware,firewall,extension, pref, etc..Thanks

When i connect my MB Pro to external monitor, I notice the wireless internet speed decreases almost 3 time. is there a solution to this? thanks for your help in advance

When i connect my MB Pro to external monitor, I've noticed my wireless internet speed decreases almost 3 time. is there a solution to this? thanks for your help in advance

"How do I find that IP address because I put in the 192.168.1.8.."
That's not the router's IP address. Most likely it will be 192.168.1.1
System Preferences>Network>Advanced>TCP/IP should show it.

Wireless speed of new iMac

What's the maximum speed of the wireless connection of the new iMac (27") ?
is the Mac running at 2.4Ghz or 5Ghz...
and 20Mhz or 40Mhz?

Welcome to Apple Discussions!
Wireless speed is not measured in Ghz. It is measured in bps. 802.11n is typically between 100 and 200 Mbps depending on local interference. That said, any other device sharing the wireless network at the same protocol will slow it down often by a proportionate amount if it is constantly sharing the network. Any device using it on a slower protocol, will slow down the wireless network to the slower protocol. Draft 802.11n often is only 54 Mbps, and so is the 2.4 Ghz in many instances when it is non-Apple. 802.11g for instance is 33 Mbps. 802.11b is about 12 Mbps. If your wireless router is set for using both 802.11n and a slower protocol, it generally will only slow down when a slower device is connected. Note these speeds are only good for devices sharing the same router. Apple's routers also have 100Mps and Gigabit ethernet, which would decrease the shared network speed with ethernet devices accordingly. You will still see the slower speed of your internet connection still be the maximum speed for data transfer over the internet.

WRT300N v 2.0 wireless speed problem

Hi!
I am having trouble getting maximum speed connecting wireless to the WRT300N router. When i connect by cable, I get 10000-13000 kb/s. Approximately the same as I do connecting directly to the DSL-router.
When I try to connect wireless, sitting right next to the WRT300N, the maximum I will get is about 5000 kb/s. Anyone know what I can try to do to find out why there is such a speed decrease wirless?

You can try to adjust the wireless settings on the router...Open the setup page and under the Wireless tab,Set the Radio Band to Standard-20MHz and change the Standard channel to 11-2.462GHz...Under the Advanced Wireless Settings..Change the Beacon Interval to 75,Change the Fragmentation Threshold to 2304,Change the RTS Threshold to 2304..Under the Security tab...Uncheck Filter Anonymous Internet Requests...Now,power cycle the router and check..

Slow wireless speeds on Mac Pro, but only downloads???

I have an "early 2009" quad-core Mac Pro. I also have a Macbook Pro that's a couple of years old. I'm running speedtest.net, with the laptop sitting on top of the Pro. My wireless setup is a several-year-old Airport Extreme base station hard-wired to the Verizon router.
My FiOS speed is 25/15, and that is generally what the laptop gets. When I first started this saga, the Mac Pro was getting about 4/12 on wireless (it is just as fast as the laptop if I hard-wire it). The laptop is also able to see about twice as many wireless networks as the Pro.
I have had the Pro in to the Genius Bar 3 times over the last couple of weeks. I give them credit for trying really hard; they say it actually has better wireless speeds in their store than one of their own Mac Pros, so they are chasing a problem they can't reproduce. The main thing they have done so far is replace the Airport card, which improved my results to about 9/17, but here we seem to be stuck. At this point the store has done everything they can think of, and all they can offer is to give me the names of some Apple certified techs who can come out to my home office (for a fee, of course) and try to trouble-shoot it here.
What I find most perplexing about this is that it's only download speed. I would think if there was some sort of interference, which is what they are thinking, it would affect both. And it would affect the laptop too.
I have a brand-new Airport base station that I will try setting up, but I don't have high hopes. I can also try upgrading to Snow Leopard, but that is a big time sink that I'm not quite ready for yet (I like to do a full install when I upgrade).
Does anyone have any other suggestions or tips on where else to research this?
Thanks in advance!

I saw this at a site where they were using DFS with Server 2003. When the few Mac's they had connected to the actual server and uploaded the file it was okay. But when it was sending the file via the \\DFS_node\share_name the Mac took heaps longer for the same file. Watching the Activity Monitor > Network monitor you could see gaps with the data transfer, as if there was some pausing between packets. A pcap showed that there was constant DNS requests coming from the Mac, even after the connection to the share was made. The same wasn't happening when the connection via SMB was directly to the actual file server. As there was only a few Mac on site they left it with the direct connection but were getting an MS specialist in to look at it. Never heard what happened with that one but you may want to try monitoring the packet transfer to see if the data movement is contstant or breaking. I'd also recommend getting Wireshark to monitor the transfer. You can compare upload to download and maybe even the transfer from the Mac to an MS workgroup share.

Problem with the wireless speed on windows with bootcamp

I've got a problem with the following:
the wireless card of my mac pro is very slow when i run windows on my mac pro with bootcamp
When i just run OSX everything works fine, but in windows, when I connect to the wireless my wireless speed
drops to 11-18mbs.
First I thought that it was a drivers issue, but after the update of bootcamp drivers 1.4 the problem still exist.
First I had a Topcom wireless router now I've bought a Apple Airport Extreme, but the problem isn't solved yet...
The router isn't 2 meters away from my mac.
And the wireless speed is fine when i connect with my dads windows laptop...
Does anyone has a solution? using a cable isnt a solution for me because in September I will move with my mac pro one floor down.

You might want to ask this in the Boot Camp forums. As your wireless work fine under Mac OS X it sounds to be a software issue as opposed to a hardware one which means as Windows users they'll better be able to help.

Log In Error and Poor Wireless Speed

Hello Forum Members,
I just picked up a EA6500 wireless router today and I am a bit disappointed. I paid $199 for this router because I was hoping to take advantage of of fast N speeds and the advanced features it offers.
When I first logged in to set up the router, I saw an amber exclamation point with a note that read "Updating Linksys Smart Wi-Fi Service". When I put my password in I was met with a "Unexpected Error" message.
Any idea what that means?
Any idea how to fix it?
Also, the firmware updater doesn't work.
Minor issues but I would hope these could be resolved. Now on to the more bothersome issue. Wireless speed is poor. I replaced a WRT160NL router with this one. On my old router using WPA2-Personal (AES) I would see speeds of ~300 Mbps. On my EA6500, I see 120 Mbps. I have checked and double checked all wireless and security settings and don't see anything that looks wrong.
Anyone else see this? Any ideas how to resolve?
Thanks,
garrman
Solved!
Go to Solution.

garrman wrote:
Hi Jibjib,
To say I have cascaded the EA6500 into another router would be inaccurate. I have the VDSL line coming into a 2Wire gateway. I decided not to use the wireless built into the 2Wire because it is wireless G only. The 2Wire gateway is handling the DHCP function. I have disabled the DHCP in the EA6500 so it acts like a switch for wired connections and a wireless access point.
Here is a link to my set up http://www.sbbala.com/uverse/ I used methos 2.
As mentioned above, I had a WRT160NL set up in the exact same configuration and it worked great delivering ~300 Mbps to the next room.
I'm not using the EA6500 in bridge mode as that's not what I am looking to do.
I don't think you would call what I'm doing LAN to LAN. I'm not creating a separate wireless network but rather a wireless access point.
The only changes I made from the stock configuration is to set the EA6500 ip address to 192.168.1.252, renamed both the 2.4 and 5.0 GHz wireless bands and apply WPA2 security. Lastly, I disabled DHCP on the EA6500.
Not sure why this would work on a WRT160NL and not on the EA6500.
Open the first link provided by jlbjlb or click List of common issues with Linksys Wi-Fi and Smart Wi-Fi Routers. I am sure that with that particular link, you can find the information and or suggestions helpful in resolving the type of issue you are having with the router.

How can i improve wireless speed?

Hey i recently put up a thread to my mistake i thought i was getting a **bleep** service but buoy was i wrong. Im getting a superb service from bt infinity 2. But heres my problem i get this through a wired connection:
and i get this through wireless:
heres my theroy how can i maximise wireless speed similar to the speeds of a wired connection. just to add i have refreshed my smart wireless thing lol at hub settings webpage. also it is my first day with bt its just been instaled now for about 11 hours now, and will it get faster but i am doubting that cause of the results above on the wired so it must be down to my wireless card or config of the home hub 4.

Now you are asking how long a piece of string is.
There are so many variables that can disrupt a wireless connection it is no wonder ISP's will not ( and cannot) support it.
Wired is always the best option but it's understandable that it may not be convenient for some devices (the manufacturers of which promise so much in terms of wireless connection).
First make sure your wireless card drivers are up to date, don't trust Windows update to have the latest ones, go to the card makers website for the latest.
If a Windows system download and run InSSider to find the best channel for your area.
After that there HERE is a link for the best advice out there. It is an invaluable source of tips, tricks etc and would recommend it to anyone not used to the vagaries of wireless networking or connections. Best of all it won't cost you a penny or endless hours on hold to support who at the end cannot help you.

SRP527W wireless speeds--repeat submission from Dec.

Bought the 527W in December, haven't been able to get a connection faster than 54Mbps even once. Andy Hickman saw to it I had access to the 1.01.19 Firmware release which appears to have solved the random 'no connection to my WAN' issue which so many others had also noted (thanks, Andy!), but absolutely no help with wireless speeds.
Scenario details available (I'll spare you the detail repeats), but suffice it so say that, even with a new 300Mbps-rated device in the same room as the router, less than 6 ft away with line-of-sight between the 2 devices, best speed is 54Mbps. Standard channel, wide channel, pick your frequency or advanced settings, I've been through the range. And gotten nowhere. If there's a trick to getting this thing working as the documents lay out, I haven't found it.
If others haven't had difficulties running in Multimode with 802.11b/g/n devices and it all works, then I'd guess I'm looking at a replacement. And since I originally identified the problem shortly after starting it up in the first place, it'd be a Cisco warranty job, no?
Any inputs/guidance/prayers gratefully accepted.

I have 3 PCs in the house: 2 tower units and 1 laptop. The 'main' PC (mine) uses ethernet cabling to the router, and the 2nd PC and laptop both use wireless. There are other devices as well, all cabled, but there are no issues with them. The laptop's internal wireless adapter is limited to 54Mbps by design, where the 2nd PC's internal PCI wireless NIC is 'N' capable (Netgear model WG311T). I know that it is functional at that speed and in it's present location because I was using it to connect to my previous router, a Netgear model, for over 3 years. There were issues with DHCP and 'whois?' reporting with that router, so I replaced it. I bought the Cisco because I wanted something a bit more advanced, to allow for service expansion to my home network in the future, as I progressed in my Cisco certification. I hold CCENT now, I'm well progressed in my ICND2 studies, and I am the sole network admin in a classified UK miltary program (aspects of CCNP or above in the design I inherited.) The Cisco router sits in the same location as the previous Netgear device did.
Since I have 1 device which cannot connect at 'N' speeds, I have to run in Mixed Mode. But for troubleshooting I ignored that, and have attempted to force the 2nd PC to connect at 'N' speeds by limiting to only that connection type, but no joy. I have made adjustments to thresholds, frequencies, etc., under the Advanced Settings for the wireless, and all with the same effect: if I try to force 'N' settings to other than defaults, in Mixed Mode or 'N' only, nothing connects at all.
The PCI card was in an XP machine when I bought the Cisco router, but is now in a Win7 machine (replaced the PC for his 16th birthday.) New OS, new drivers, same problem. So, assuming there's some compatibility issue between the NIC and the router, I bought a new 300Mbps-capable USB wireless adapter. For testing, I tried it with the laptop. Sitting in the same room as the router with no obstacles but air between them, this new adapter can't connect any faster than 54Mbps either (but it sees other networks in my neighborhood than I knew were there to begin with, I must say!!)
So: 2 different adapters, 2 different OS versions, 3 different PCs in multiple locations around the house, and 1 constant--the router. Any advice? I'm going to reset the router to factory default today to see if that does any good, but I'm not confident.
Thoughts?

Wireless Speed explanation

Hi every one
I have some problem in basic understanding of the wireless speed. can any one help me with this please?
When we are considering for example AC connection with 2x2 antenna (provided no noise and close to the AP) we expect around 20MBps speed. now the question is this speed only for 1 client? if there is another client in the room connected to the same AP would this speed dropped or share? how about a class of 30 students then?
and is there any thing we can do about client hugging the AP!? I mean when multiple clients copying file at the same time then one client is ok and the others are struggling! as soon as the first client finished then it would be replaced by another client with good speed and the rest having a battle over the AP!!!
the AP speed are 1G connection / 3700 series
5508 WLC 7.6.120.0
35 student in the class. each class has atleast 2 AP assigned to and able to read the signal from other 4 AP around from different classes
Thanks for every one for your comments
Regards

35 student in the class. each class has atleast 2 AP assigned to and able to read the signal from other 4 AP around from different classes
Just because a classroom has 2 APs does NOT guarantee the wireless clients, located inside the same classroom, will join to either one of the APs. It has been well known and documented that a wireless client can join to an AP with the worst signal.
and is there any thing we can do about client hugging the AP!?
No on the Cisco side of things. You have to ensure the wireless NIC cards' driver of the the wireless clients are up-to-date.
Wireless is a shared medium (aka half duplex). This means that when one talks (including the AP) all the rest has to "back off" and wait for their turn. So, in theory, you can't have two wireless clients talking, at the same time, to another wireless client.
It's like going to a restaurant. If you go to a large restaurant during off peak, the food is prepared more quickly. However, if you go to the same restaurant during peak hours, your food is prepared much longer.

WRT600N slow wireless speeds

I have a WRT600N router. I have one PC that is connected to the router via a wired connection. I also have an iPad (3rd generation) that is connected to the router via a wireless connection. On my PC, I went to speedtest.net and determined that I am receiving like 20MB downloads via the wired connection. However, my iPad only gets approximately less than 2 MB download speeds. I have tried reseting the router and I do have what I believe to be the latest firmware update (Firmware Version: 1.01.36 build 4). I also receive the slow download speeds when I try connecting the other wireless devices. I assume my problem has to do with some sort of configuration setting found in the router configuration page (http://192.168.1.1/). Can anyone please advise me what to do? The router is only a few feet away from my iPad so the signal strength is strong. I just don't understand why I'm receiving such slow wireless download speeds.
Solved!
Go to Solution.

dpnowak wrote:
This suggestion did not work. I tried to isolate the problem by optimizing the router's wireless settings. I used the 2.4GHz, set the radio band to standard 20Mhz then set the standard channel to 9. The laptop had the same slow wireless speeds as the iPad did.
This may be due to the IPv6 feature on your computer. One of the solutions may be disabling IPv6. If the issue still exist after performing this step and download speed is fine when connected straight to the modem then reset reconfigure could work, just use WPA2 for the security with AES and a fixed channel for wireless.

EA6200 in Bridge Mode Slow Wireless Speeds

Hello All,
I just purchased a Linsys EA6200 AC router (refurb) to extend my existing wireless network. I have setup the 6200 as an access point using the Bridge Mode outlined in the Users Guide (automatic configuration). While I am able to connect to the Internet from the router wirelessly, my Internet speeds while connected are roughly a third of my max MBPS, I have a 55 MBPS connection and consistently get speeds around 14-20 MBPS with this router from a 10-12 foot wireless distance. I get full speed while wired in, however, as soon as I go back to WiFI I get a significant performance drop.
Is there something that can be done to correct this? I am running the latest firmware and have set the 2.4G channel to 20mhz and the 5G channel to 40mhz while specifying a channel number with no increase in performance or speed. Any help would be greatly appreciated. Thank you.

What Mfr and model is the main host router?
Try single mode G or N or mixed G and N on 2.4Ghz and single mode N or Mixed on 5Ghz on the main host router?
Channel Width set for Auto 20/40Mhz. 20Mhz can slow the wireless speeds down.
Try setting a manual Channel to a open or unused channel. 1, 6 or 11. 11 for single mode N if the channel is clear. 13 for EU regions. Try channel 48 or 149 on 5Ghz.
http://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=f2625b15a5d7454b8e7fafbe65d5aa63_4009.xml&pid=80&r...
What security mode are you using? Preferred security is WPA-Personal. WPA2 Only. http://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=8ce9e83bd3784001aee72da7f1ef48e8_Changing_the_basi...
http://kb.linksys.com/Linksys/ukp.aspx?pid=80&vw=1&articleid=19073
Any 2.4Ghz or 5Ghz cordless house phones or WiFi APs near by?
Any other WiFi routers in the area? Link> Use http://www.metageek.net/support/metageek-software-archives/ to find out. Use v3. How many?
WMM Support must be enabled for single wireless N mode to function.

Slow wireless speed with new iMac Intel- problem with 802.11g?

There IS a problem with the new Intel Mac, I have tried both the Intel iMac and the new Intel Mac mini and they both have the same problem with slow wireless speed (or rather it variates, if I do a ping to another computer on the network the speed goes from < 1 ms up to 1000 ms and then down to < 1 ms and so on). The older mac minis, my Linux boxes and my Windows PCs don´t have that problem. I have also read reports on the net and it appears that most users experiencing this problem have wireless card firmware version 101.3 (3.120.28.3) . A possible "fix" is to change to 802.11b on the router and then it works. No speed fluctuations and a stabile network! I know it is a bad solution, I would prefer to use 802.11g and get the speed. However I think this points to a problem with the drivers regarding 802.11g. I am starting up a new thread on this and those of you with problems, please try to switch to 802.11b and if it works let us make Apple aware of this.
/Tobbe

Which home hub do you have?
There is some general help at this link Wireless connection problems
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

Leopard Wireless Speed Decrease...?

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