Imac i7 WiFi Card extremley slow

hi, i have an imac i7. the internet used to work fine on it. but recently in the last few days i have noticed extreme dropping of speed and inconsistent reliability on the connection. it is not my internet as i have ran speedtests on my windows laptop and my iphone. all showing up to around 12mb consistently, however my imac is maxing out at 2-3mb and only sometimes reaching the 12mb mark.
is there a problem with the card? has anyone ever come across this?

HI,
but recently in the last few days i have noticed extreme dropping of speed and inconsistent reliability on the connection
Try resetting your router or Airport BS or Airport Express.
Try a difference Airport channel.
Open AirPort Utility, located in the Utilities folder in the Applications folder on a computer using Mac OS X.
Select the Airport in the Device pane on the left, and then click Manual Setup. Enter the base station password if necessary.
Click AirPort in the toolbar, and then click Wireless.
Choose a new channel from the Channel pop-up menu then click: Update. Quit Airport Utility and restart your iMac.
Carolyn

Similar Messages

WiFi card makes initiating a connection on other cards very slow.

Hi All -
Java 5
Windows XP, 2000, and Adv. Server
We do programming for multiple closed networks, so my development box has 4 NICs, each going to a different isolated network (each has its own subnet).
All was well until recently we had some WiFi cards installed in our machines. Now initiating a socket connection on any NIC that is not on the same subnet as the default gateway takes a long time - about 30 seconds, but it can vary. Once the connection is made, its just as fast as ever, but creating the connection takes a lot of time.
The strange part is this: it doesn't matter if the Wifi card is even in use at all during the transaction, merely having it enabled as a card causes the problem. I have tried modifying my routing tables so that the only option is the correct one just to see if that makes a different - and it doesn't.
This problem is reproducible on Windows XP, 2000, 2003 server, on at least 5 completely different computers, and in Virtural PC. The only thing they all have in common is the same D-Link WiFi cards.
Take this example:
NIC 1: 192.168.1.x -> default gateway is a 192 address, this is the card that connects to the internet. All connections are fine using this card.
NIC 2: 10.30.100.x -> Wifi card. This card is enabled but not being used for this transaction at all.
NIC 3: 128.0.0.x -> Normal card, any attempt to open a socket with the Wifi card enabled takes a long time.
NIC 4: 10.10.10.x -> Normal card, again, the Wifi card being enabled will slow down the opening of a socket.
This configuration is merely an example, I have tried changing which card services which subnet, what cards are enabled or disabled, more cards, less cards, multiple IPs per card, single IPs per card - nothing makes any difference either way except for enabling the Wifi card slows it down and disabling it solves the problem.
I've also disabled 'Wireless zero configuration' on advice from another network programmer - makes no difference either way. I've also tried binding to various specific local IPs, tried different servers to connect to (and different types of servers). and tried pretty much every constructor available for Socket. This did not change anything.
Anyone else experience this? Any more information I could provide to help solve the problem?
Thanks!
Jason

edex67,
I'm new to wifi so the info you sent, i.e.; inSSIDer, is something I didn't know about. So thankX for that. Interference not part of the problem. I did change channels from 11 to 5 as some of the neighbors are on 11 and 6. That didn't help. 5 Ghz change doesn't help either. Have reset to factory specs twice along with deleting my first network and beginning from scratch. Still didn't speed things up. ISP isn't a problem either. Separate diagnostics shows download speeds great. I've even restored my computer to a previous date when the Airport Express was screaming downloads. The slowdown happened yesterday as I was trying to set up my old computer; changed motherboards and can't access the internet, needed to find drivers on line and somehow in the process Airport slowed to a crawl. Must have changed something and can't get back to the speed of yesterday morning. Have been working on this since 8 AM. Did I mention that I hate Microsoft?
So, even restoring factory specs and installing from scratch doesn't get me back to speed.

IMac without Airport/WiFi Card?

Hi,
I want to get an used iMac that *doesn't have* any Airport or WiFi card/possibilities and that could run the latest version of Mac OS 10.5 (I'd need it for music and photos storing purpose).
So, what would be the most recent version of this iMac?
Thanks.

Hello,
To get an iMac that doesn't have the possibility (i.e. option) of having an Airport card you have to look at a 350MHz or lower model. If you just want an iMac without an Airport (Extreme) card which will run Leopard (which, with respect, isn't necessary for playing music or storing photos) the look at these models:
+iMac (Flat Panel) 17" 1GHz+ (these are G4 and USB1.1)
+iMac (Flat Panel) (USB2.0)+ (these are 1.25GHz 17" and 20" or 1GHz 15" G4s)
+iMac G5 17"+ (1.6GHz or 1.8GHz) or,
+iMac G5 20"+ (1.8GHz)
There are also eMacs that would meet your requirements. You do know that you don't have to use Airport!(?)
kind regards
mrtotes

What replacement wifi card do i need for iMac 21.5-inch EMC 2308 late 2009 model

Need to replace wifi card. For the life of me, I can't find the exact model # of wifi card I will need. Only that I need "AirPort Extreme (802.11g/n)," but when I search for that, I get all sorts of different shaped and sized cards that meet those specs.

I would try giving them a call at their support number. They may be able to help both identify the correct part and know where you can get a replacement. In addition, you may also want to consider getting a wireless USB adapter. You would use this instead of the internal card. There are a number of vendors providing these as well.

Problems with build in wifi card in DV6-2190us.

Hi am trying to see if someone can help me out with a problem am having with my WIFI and also LAN on my laptop.
The problems am having is with connectivity and speed on WIFI and also problems connecting to a network with a Ethernet cable.
The problem am having with my wifi is when trying to connect to a network it takes me about 5 to 10 minutes just to try to connect to the network and once connected it will continue to say unidentified network and it will take 5 to 10 minutes to connect to the internet. Once connected to the network and the internet the connection will start fast and slow down to a crawl even do am 10 to 20 feet away from the wireless router and I have full bars. After the connection slows down I will get disconnected from the network and it will take me 10 to 20 minutes to get back on it.
Also when I try to connect to the network using a Ethernet cable I will get connected but if I unplug the cable and try to connected again I won't be able to connect to the network or the internet and I would have to restart the laptop with the cable plugged in.
All of the drivers on the laptop are up to date and also windows is up to date I really don't know what's going on.
I have formatted and installed Widows 7 done all of the updates I have also updated all of the drivers for the laptop but the problem continues to come up.
After talking to some of my IT friends we removed the build in wifi card from the inside of the laptop and changed it with a wifi card of a same model laptop to rule out problems with the card, but the problem continues to happen with the new card installed on the laptop. The card that came out of the laptop with the wifi problems was installed to the second laptop and the wifi problems came up but after installing the original wifi card the problems went away.
The thing that trying to figure out is why the card that came out of the working laptop won't work correctly on the laptop that's having problem with.
If anyone has any ideas on what maybe causing the problems please reply to this post I really need to have this problem fix before I start taking online classes.
Thank you for taking the time to read this post.
Laptop information.
DV6-2190us
Windows 7 64bit Home SP1
i7 1.60
Ram 8gb
AVG Pro 2012

You are posting on an iMac forum. I'd recommend posting a MBA forum, however I think you best bet is taking it into your local Apple store or AASP to determine if the Wi-Fi adapter is damaged and if it is then checking to see what options you have.

New WIFI card will NOT connect correctly.

Hi,
I just purchased a Gigafast WF748-CUI wireless card for my iMac G3 running Mac OS X Tiger (10.4.10) and I followed the instructions exactly and did everything right but it will NOT connect. It keeps generating these weird IP addresses beginning with 168. but my networks IP address begins with 192. I had the same problem with my previous WIFI card on the iMac but it would work eventually. I have been messing with this one for like 2 hours and it has shown no sign of working. I even entered a manual IP address in but still nothing. The program for the wireless card says its connected but it is not (or isnt connected to the right IP anyway). What do I do?

Sooo, there's no way the CP has to "Join" a Network? Just says you're connected to 169.x.x.x?
Might try making a New Location in Network CP, turn off all other Ports, the set the IPv4 settings to Manually...
IP: 192.168.0.5
Subnet Mask: 255.255.255.0
Router: 192.168.0.1
Assuming the Router is 192.168.0.1, but change the 2nd & 3rd digits accorcdingly.

Wifi card not working properly

I purchased an hp Envy in October 2014. The wifi card no longer functions properly. Connections are intermittent or so slow they don't function. Is this defect covered by warranty? The wifi card is Qualcomm Atheros AR9485 802.11
As long as I'm hard wired, I have no internet connection issues. But dysfunctional wifi limits mobility and eliminates one of the primary features that I relied on in making the purchase choice. What is the solution?

Hi @2014Envybuyer,
Welcome to the HP Forums!
It is a superb place to find answers and suggestions!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
I understand that you have an issue with your wireless.
Here is a link to HP PCs - Troubleshooting Wireless Network and Internet (Windows 8) that should assist you.
If the issue remains please contact HP support for further assistance or service.
Please call our technical support at 800 474 6836. If you live outside the US/Canada Region, please click the link below to get a support number for your region.
World Wide Phone Support
Best of Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

My imac says wifi not configured all other devices in house are working please help

how can I reset the wifi card in my imac

If the wireless card or circuitry in the iMac appears in the hardware profile, then it exists
and could be used by the system; the configuration of Network in system preferences is
part of that. Also the AirPort setup to be able to find & use available wireless networks
is usually not difficult.
•Configuring your Mac's network settings - macworld:
http://www.macworld.com/article/2027960/configuring-your-macs-network-settings.h tml
•Solutions for connecting to the Internet, setting up a small network, and troubleshooting - Apple Support
An older iMac running OS X 10.4 Tiger would be somewhat different, but similar to later:
•Network configuration for Mac OS X 10.4:
https://lapserv.maths.cam.ac.uk/docs/osx104.html
However, not knowing what iMac model build version or OS X system version your have
makes choosing how to reply to a general and vague question such as this. Since a Mac
does not run an iOS (an iDevice, not a Mac product, would use iOS system) what OS X
does your computer use? And if the hardware utilizes a core 2 duo or other Intel based
processor, then you don't have the vintage old iMac version this discussion area is about.
The answers change, depending on the hardware, since the later OS X versions do not
run on old hardware. So there is a gap between what you have, and what you said...
Even so, the general settings for Ethernet, Wi-Fi and other connections for networking
are in the system preferences; you can also choose to change options in there.
Good luck & happy computing!

My imac seems to be getting slow on the internet. sometimes its good sometimes it acts up. is there anything that I can do to speed things up ?

my imac seems to be getting slow on the internet. sometimes its good, sometimes it acts up. is there anything that I can do to speed things up ? Is there software available to tune up my imac?

If this is Internet related, the slow downs can be caused by increased user activity on your ISP's server.
The more people on your ISP's server doing things on the Internet, the slower your connection will be.
Is there certain times of the day when you notice the Internet is slow?
If so, that's probably the reason.
Also, do you share a connection with anyone else? Either on WiFi or Ethernet?
That will slow your connection, too!
Do you know what your Internet download speeds are?
Not a high enough bandwidth and slow downs will be more evident.
If on a WiFi, is the router you are you using 802.11 B, G, or N speeds?
Might be time from a newer, faster router?

Cannot Import Images from 2008 iMac to 2011 iMac over WiFi

I have 2 iMacs (i.e., 2008 and 2011). I use my 2008 iMac to store my RAW files for backup, and then I import them into Aperture 3 on my 2011 iMac over WiFi. I can see my 2008 iMac folders with Finder (Shared) on my 2011 iMac with no problems; however, I can't see my 2008 iMac when I am trying to import into Aperture 3 on my 2011 iMac. This used to work in the past. I am stumpted at the moment and I need an idea to try.

First on the iMac hold down the 'option' key while clicking on the Apple symbol in the right hand of the menu bar. There launch "System Profiler". In that program look and thr wireless section and see if it still sees the wireless card. If it does then lets move on to more steps to reset the OS X drivers for it.
To reset the OS X drivers for the Airport card follow these steps:
1. Shut off the Airport card fully by going to System Preferences->Network pane and turn off Airport.
2. With an Admin account go to the folder /YourHardDrive/Library/Preferences/ and find the folder "SystemConfiguration" and delete the files:
a) com.apple.airport.preferences.plist
b) com.apple.nat.plist
c) com.apple.network.identification.plist
3. Restart immediately to rebuild these files.
4. Upon the restart rejoin the wireless network.

Bad wifi card macbook?

I use a late 2008 MacBook. My wireless internet connection seems to time out and slow dramatically from time to time. If I turn the airport off and then back on, it seems to get it going again. I use ATT U-verse and our connection is typically extremely fast but lately the speed has been intermittent and won't load webpages. However, when I connect my computer directly to the router via ethernet cable, the speed is constant and the problem goes away. Is this a sign of a bad wifi card?

Not necessarily...if the card failed, you'd most likely not be able to use it at all. Which protocol are you using to connect? It may be useful to delete the current network 'location' and recreate to see if that helps.

Ralink RT3290 802.11bgn Wifi Card - Possible Issues [SOLVED]

Dear Lucky owners of such a card, At least from my experience I realized it is not that bad card, even if most probably many production pieces were faulty or not working properly, and many issues can be resolved. Let me list in order of time the issues I faced and solved about this wifi card: 0) First issue is not about RT3290 card itself but it is related to 802.11w encryption compatibility in between Windows8 and Cisco not allowing 802.11n speed rates so failing to G speeds only. - SOLUTIONS: a. As first test I would recommend trying another router from different brand to see if connecting at 802.11n speed rates b. If you prove point a issue, then try to fix the issue based on following post (in which you can see the reply from myself Emanuele on the 29th of Nov 2014): https://supportforums.cisco.com/document/113836/windows-8-clients-cant-associate-cisco-unified-wireless 1) Signal strenght issue: original wifi card RT3290 installed on my HP laptop was having really bad antenna, with signal fluctuating and sometimes bad even really close to any Router I tried. - SOLUTION: Replace the RT3290 card even with same new card. (In my case as laptop was under warranty, I proved the issue via screenshots and they replaced with new card solving my signal strenght issue). 2) Original issue (1) was actually resolved after HP replaced the wifi card with same model, but with the latest driver installed 5.0.45 seems like wifi rates change too frequently based on high sensitivity of the driver itself, so that suggested me issue was still there, so making me re-testing anything from scratch. - SOLUTION: Install 5.0.37 Driver - frequent rate changes issue (with driver 5.0.45) disappears and sensitivity of signal to rate changes seems to be a really good compromise to have good throughput. 3) To check out 2nd issue above I started again using a third party software inSSIDer free version to check signal while I was doing speedtest on web.
- RESOLUTION:
inSSIDer normally works on Windows7 without any issue but on Windows8 (at least tested with RT3290) I have just discovered somehow this software was slowing down wifi card performance drastically showing a speed up to 0.1Mbps rather than 40Mbps. Simply closing the application issue was not recurring, so uninstalled it and after solving all the other issues above this card works perfectly (at least so far ) Hope this post will be informative and will help other about-to-get-mad guys as me

Hye. After I read up your solutions, I am quite impressive and really want to try out those solutions. However, I am not very computer wise and I really appreciate if you make a video on solving this problem. Up to you if you want to upload it on the youtube (so that others with similar problem can view it and solve the problem too) or you want to direct email to me ( [email protected] ). I really hope you can help me because I am stuck with this problem since last year. Thank you!!!

TimeCapsule WiFi is toooooooo slow...

Hi there,
I have a problem and have no idea to solve it...
I have an optical cable connection, the TimeCapsule connected to the hag and have an iMac connected to the TimeCapsule by cable and there the net works good!
Then I have my MacBook connected by wifi to the base.
Everythings orks good until one week ago.
Now i have the timecapsule that doesn't work as wifi... The wifi is to slow that I need 2 or 3 minutes to charge a page...
Somewhere i read that i can set “Interference Robustness”, but if i set it TimeCapsule disappears from my net and from Utility AirPort.
I have try to explane me in my english =P and hope you can help me

Consider these factors regarding slow network speed:
*Transmit Power & Wide Channels*
If you are using the 802.11n only (5 GHz) radio mode, you can also select to use wide channels, which provide higher data throughput in your network.
Launch Airport Utility
Select your Time Capsule on the left.
Click “Manual Setup”.
Select “Airport” in the toolbar.
Click the “Wireless” tab.
Click “Wireless Options...” at the bottom of the window.
Adjust the “Transmit Power” to 100%.
Put a check mark in the box labeled “Use Wide Channels”.
Click “Done”.
Click “Update” in the lower right hand corner.
Wait for the Time Capsule to restart and then see if your network speeds improve.
*Anti-Virus Software*
Are you running anti-virus software. Disable it and see if network speeds improve. The discussion boards are filled with users who are experiencing degraded network speeds due to their anti-virus software.
One poster observed: “I had the exact same problem 5mins ago, it had taken 2 hours to back up 2GB, I realized I installed Sophos anti virus a couple of days ago. When I turned that off my back up is speeding through.”
Another contributor stated, “I am doing the first backup to my time capsule, about 71 Gb, It seems to be going about 1 Gb per hour. is this seem OK? I tried the ethernet connection and the speed was about the same. It has been going all night and after 12 hours it is at only 12 Gb of 71….I found the problem, I uninstalled Norton and the problem went away. It backed up in about 3 or 4 hours”
*Wireless Security Issue*
Some who have experienced degraded network speeds have isolated the problem to their wireless security setup. Try this:
Launch Airport Utility
Select your Time Capsule on the left.
Click “Manual Setup”.
Select “Airport” in the toolbar.
Click the “Wireless” tab.
Change “Wireless Security” to “None”.
Click “Update” in the lower right hand corner.
Wait for the Time Capsule to restart and then see if your network speeds improve.
Granted, this is far from desirable. But it does help to isolate the problem in you instance.
Let us know if any of these procedures helped.
Cheers!

Time Capsule wired to PC with no wifi card.

So I'm a little confuzzled here, hopefully somebody can help me out.
I have a router in the basement that all of my devices (MacBook, iMac, etc.) connect to. I have a Time Capsule (2nd generation) in my room (two stories above) that I use to backup my data. I decided to bring my (old) PC to my room and unfortunately it doesn't have a wifi card (Dell Dimension 4700 from 2005 running Windows XP).
Question:
I've tried connecting my Time Capsule (wirelessly connected to my router) to the Dell via ethernet but internet still doesn't seem to be working on my Dell.
I know the Time Capsule can be used as a wifi extender but if I have a wired connection to my Dell, shouldn't this work? If not, should/would I need to enable the wifi extension feature on my Time Capsule (not sure on how to do that)?

I think I follow.. as I also might be a little Confuzzled in the description.
The router in the basement .. Is it apple??
If not, the TC in your room cannot extend its wireless. But just to be clear, you don't have ethernet running basement to 2nd floor room??
In your room at the moment your Macs do not use ethernet to the TC? If that is the case then the TC is not extending wireless.. you are merely joining the TC to the main router.
Find out for sure..
Open airport utility and go to the wireless tab.
This is how it looks when I join my TC to my non-apple router..
This mode has the follow effects..
Ethernet is turned off.
Wireless AP is turned off. The TC is now merely a client.. it cannot wireless bridge to the PC.

2180us wifi card update? New card not on white list

I bought a dual band 802.11ac card with the intention of updating the single band 802.11n card in my laptop. It is a dm4-2180us. When I put it in I discovered that the BIOS will not boot the computer. I since learned that the BIOS has a white list of acceptable cards. All others are prevented from booting. All seemingly from 4 years ago!
What options do I have to go to 802.11ac dual band? Is my otherwise perfectly fine laptop stranded with sub par networking?
I have two of these laptops and two of these cards I cannot use.
I am frustrated.
-Tom

So, it seems that HP agrees that the white list was a bad idea in that they no longer do it. But that does not solve the problem for people who have laptops from that period. My understanding is that a lot of the BIOS's have RSA keys, so that it is impossible for a user to modify them. Actually I have looked for a modded BIOS for this model and it seems to not be avialable.
Also there are no cards avilable that offer ac or dual band. For that matter how would I know what is on the whitelist other than a handful of cards from 5 years ago.
HP is still updating the BIOS from time to time. Mine is in the file sp60704.exe (01651.fd). It is probably a 2 line code change. I wish they would supply an update removing the white list.
I'd get a USB dongle but the machine has USB 2.0 and that is actually slower than the new wifi cards. Also USB has its own throughput issues, even if I had USB 3.0 it would run slover than the max data rate.
I feel that HP owes buyers of these older machines some kind of a fix. Especially given that their policy is to not implement white lists in BIOS anymore.

Imac i7 WiFi Card extremley slow

Similar Messages

Maybe you are looking for