Dropping signal when computer sleeps

I am having trouble with the wireless network dropping off every time the computer sleeps. Each time my iMac sleeps from inactivity when I start it up again I get a disconnect message and have to go through diagnostics to get the airport extreme to run again and then everything is fine.
Any ideas?
Thanks, Eric

I have the same problem with my MacBook Pro. Even using signals in my Preferred Networks list after it sleeps it drops the connection and a re-start is the only way around the problem.
Any advice appreciated.

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Airport connection dropping off when computer sleeps

Starting with the latest 10.4.8 update my airport connection drops when the computer goes to sleep. No amount of configuring will get the computer to recognize my airport. Turning off the power to the airport, waiting, and re-connecting does no good. The only way to get wireless is to restart. Once restarted the airport connection is re-established without any configuration and continues to be fine until the computer goes to sleep. Hard wiring ethernet works at all times without problems.

thanks,
i read the doc, looked in the system prefs where my re-connect was set to "preferred" and there was only one wpa network listed. i deleted it from the list then re-added per the apple document. will see if this works.
in my own mind i don't think this is the solution but am keeping an open mind. the weird thing about my situation is that after the computer sleeps there are no available networks under the airport menu. i know in fact there are 4-6 in my area. after restarting the 4-6, including mine, networks are all there and my network has been connected to.

Dropping signal when in sleep mode

Hey all,
Been using the airport extreme for years now. All of a sudden we're getting dropped when waking up from sleep mode.
-The bars still but there is no connection.
-This happens when we're in sleep mode.
-We have to "turn off" and "turn on" the connection and then everything works.
-We have an emac, imac, and a ibook. We have to do the same steps for all of them.
-Also, about once every 3-4 months the airport completely drops out (grayed out bars at top) and we have to reset it (power down and up) to get it to work.
Any ideas??
THanks,
-Dooki

I have been having the same problem ever since I got my new iMac in December. Been on the phone with tech support about 6 times. I think my problem is related to interference within my house. I have tried everything and just today moved my computer to a room very near the Airport Extreme base station. So far all works perfectly. I didn't have this problem with the linksys router I was using with my PC before getting the Mac (802.11g). I have a 5 GHz wireless phone system in the house and maybe that has something to do with it. My problem only occurs after a "long sleep," so I'll have to check things out tomorrow, but getting the computer near the base station seems to have made a difference.

TS2972 Apple tv sleeps when computer sleeps. What to do

The TV disconnects from Apple TV sharing when computer sleeps. What to do?

George, Your trouble sounds just like mine. You can read my thread here: https://discussions.apple.com/thread/4204561?start=0&tstart=0, but in summary:
Itunes and the Apple TV exchange messages about once per minute. If any wifi interference stops the message-and-reply, iTunes closes the home sharing connection. Other services are usually fine.
I solved my problems by wiring the ATV and computer. (Wiring either alone didn't work.) Home Sharing is now rock solid and works exactly as advertised. No drop-outs during play. The iTunes library is always available on ATV - I never have to restart home sharing or iTunes or the ATV. If a computer or ATV restarts, they pair up automatically.
Not everyone can wire, I know. But it worked for me. Test it if you can.
John

Since I upgraded to Maverick when computer sleeps it will not wake up but must be restarted? Also password to icloud is never saved?

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I read someone said you can tap on "other" when selecting which wifi you connect to and then entering the exact wifi name of the network you wish to join and the password and then joining that network allowed the password to be saved. Also with iOS 6 the minimum length of the password needs to be 8 characters. Maybe you password on your router is less than 8 characters long

PPPoE Still Disconnects When Computer Sleeps

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Hi there, Welcome to the Apple Support Forums. What I say is just my own opinion. We all work in many different ways.
I can't see any benefit to keeping a USB port fired up to keep a hard drive running, when the computer and Time Machine are both asleep. If nothing is happening or changing on your computer then there's not much point of keeping a Time Machine drive running. In addition, I wouldn't consider using a USB powered drive for something important like a backup system. USB powered devices can be pretty flakey.
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Amazon has the Simplify device for $42 w/free shipping. I leave my iPhone in the dock whenever I'm around the office. I think I paid around $70 at the show and don't regret it a bit.
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Message was edited by: dechamp

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It seems like when the computer sleeps it loses the internet connection and mail does not realize it has recconected when the computer is waked.
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Mike

Try this. Upon waking the computer from sleep. Wait about 20 seconds before doing any network activity like Mail or Safari. Then try it.
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My wifi drops off after computer sleep

After computer sleep~ 1hr or more, can’t access internet, WiFi icon in menu bar says I’m connected.
Network diagnostics gives me error message: “Network Diagnostics wants to access key: My network name in your keychain, do you want to allow access? I hit “Always allow” , then I get message : “Network change detected- do you want to proceed”, I hit “yes” and WiFi is restored.
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2 NV RAM reset
3 turn off Firewall off
4 Set service order
5 SMC reset
6 Remove System Configuration folder
7 Renew DHCP lease
8 Remove Bluetooth Preferences file.
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I have a New 27" Imac:
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Part Number: Z0MS
With the following configuration:
PROCESSOR     065-C0PK     3.4GHz Quad-Core Intel Core i7
MEMORY     065-0638     8GB 1600MHz DDR3 SDRAM-2X4GB
I installed 32GB of Crucial Memory.
HARD DRIVE     065-C0X7     768GB Flash Storage
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On the MBP, go to /Library/Preferences/System Configuration
Move all the files in the System Configuration folder to the Trash.
Restart the Mac.
It will not let me log on network saying invailed password
Just in case, open Keychain Access located in /Applications/Utilities
Select Passwords on the left.
Use the search field top right corner of the window to locate your network keychain.
Now right or control click the keychain then click Get Info then select the Attributes tab.
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Apple has replaced my phone, I have done a restore from back up and set up as new. I have kept off music and apps. It does it in edge or 3g.
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I have been having the same problem ever since I got my new iMac in December. Been on the phone with tech support about 6 times. I think my problem is related to interference within my house. I have tried everything and just today moved my computer to a room very near the Airport Extreme base station. So far all works perfectly. I didn't have this problem with the linksys router I was using with my PC before getting the Mac (802.11g). I have a 5 GHz wireless phone system in the house and maybe that has something to do with it. My problem only occurs after a "long sleep," so I'll have to check things out tomorrow, but getting the computer near the base station seems to have made a difference.

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Hey,
When your computer goes to sleep it usually closes the usb connections because they draw power. Try going into energy saver and check the box next to "prevent computer from automatically sleeping when display is off" I hope that helps.
-crazy

Dropping signal when computer sleeps

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