Imac won't stay connected to wireless network

I recently moved and now my imac won't stay connected to my wireless network. Every other device connects just fine, so it's not the service, or the location, because devices are all in the same room.
Every time my computer goes to sleep it seems to completely forget how to connect to the internet. There is only one Network (mine) listed in preferred networks. The computer will connect only if I go to System Preferences and run through the Network Diagnostics to tell it exactly what to connect to. Each time it says my connection and internet are fine, which I know.
Please someone tell me how to get it to remember my network so I can stop going through the Diagnostics every time I want to use my internet.

Though all of these steps may or may not be needed, I'm including them all.
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.5, 10.6, 10.7 & 10.8…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x/10.8.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
If using Wifi/Airport...
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6/10.7/10.8, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
(There may be better or faster DNS numbers in your area, but these should be a good test).
Click OK.
If that doesn't work try changing channels on your Router.

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My iMac won't stay connected to the internet, even though all other computers in my house stay connected

My iMac won't stay connected to the internet, even though all other computers in my house stay connected, and its connection is set up the same way my fiance's macbook is (his macbook is about three years older than my iMac). Every time my computer goes into sleep mode and I come back (even if it's mere seconds after giving the black screen) I have no internet connection. I discovered a workaround for it some time ago, but now that is working less and less, and now my computer randomly disconnects WHILE I'm actively using the internet. Just a few minutes ago, the connection refused to come back until I restarted my computer, even though once again all other computers in the house were connected. The workaround I discovered before and which doesn't work as reliably now, is to click opne Airport at the top right of the screen, click "Open Network Preferences," then click "Assist me," then click "Diagnostics," and wait for everything to turn green again, signalling a connection.

Let's check the quality of your connection since signal strength alone does not insure a good connection. The "bars" that you see at the top of the iMac screen are there pretty much for show.
Hold down the option key on the iMac while you click on the Apple icon at the upper left corner of your screen and select System Profiler
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In the window to the right, look for any listings of your wireless network name. You may possibly see two listings for the wireless network name.
We need for you to list the information that you see for Signal / Noise. These will be negative numbers. Post back with your findings and we will continue.
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If the iMac is located in a corner or an enclosed area, give it as much room as possible since the wireless antenna is on the back of the iMac and it needs to be able to "see" the room.
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HP Officejet 6500A Plus not staying connected to wireless network

Just picked up a HP Officejet 6500A Plus e-All-in-One Printer - E710n the other week and set it all up and it was working wonderfully. But I noticed after it goes into sleep mode it disconnects from the wireless network and doesn't reconnect.
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Hi,
The printer should stay connected to your wireless network after the printer enters the sleep mode.
This is not an expected behavior.
I believe such an issue may be caused due to a signal quality or any conflict as too many broadcust on the same channel.
Please try the following steps in order to better understand the issue:
Follow the Wireless Setup Wizard if your printer currently disconnected
Enter the Setup menu.
Enter the Network menu.
Click Wireless.
Click Wireless Test Report.
What is the signal quality provided by the report and what channel used to broadcast by your router?
If you may scan and attach the report, it may help to better understand any possible cause.
Regards,
Shlomi
Say thanks by clicking the Kudos thumb up in the post.
If my post resolve your problem please mark it as an Accepted Solution

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Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
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Hi wellandpondsteve,
Welcome to the Support Communities!
The article below may be able to help you with this.
Click on the link to see more details and screenshots.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Cheers,
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Aminiman:
What make is the router?
What are the firewall settings on your Vista? What puzzles me is that your steam connection is fine and yet you cannot browse the internet.
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Message was edited by: Axel Foley

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Try updating your system software to 10.5.8 with the combo update available here.
http://support.apple.com/downloads/MacOS_X_10_5_8_ComboUpdate
After the installation, repair disk permissions.
Quit any open applications/programs. Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. That can be ignored. As long as you see, "Permissions Repair Complete" when it's finished... you're done. Quit Disk Utility and restart your Mac.
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Any advice would be greatly appreciated,
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Wi-FI connection drops
Wi-Fi Problems in OS X Yosemite (2)
Wi-Fi Problems in OS X Yosemite (3)
Wireless Diagnostics
Also try turning off Bluetooth.

My iMac is not staying connected to my wireless internet. Any suggestions? My provider says it's a computer issue and not their problem.

My iMac is not staying connected to the wireless internet. My provider tells me it's a computer issue and not their problems. Any suggestions?

Please test after taking each of the following steps that you haven't already tried. Stop when the problem is resolved. Back up all data before making any changes.
Step 1
Take the applicable steps in this support article. The Wireless Diagnostics program generates a large file of information about your system, which would be used by Apple Engineering in case of a support incident. Don't post the contents here.
Step 2
Disconnect all USB 3 devices. If you don't know which are USB 3, disconnect all USB devices except keyboard and mouse.
Step 3
If you're not using a wireless keyboard or trackpad, disable Bluetooth by selecting Turn Bluetooth Off from the menu with the Bluetooth icon. If you don't have that menu, open the Bluetooth preference pane in System Preferences and check the box marked Show Bluetooth in menu bar. Test. If you find that Wi-Fi works better with Bluetooth disabled, you should use the 5 GHz Wi-Fi band. Your router may not support it; in that case, you need a new router.
Step 4
Open the Network pane in System Preferences and make a note of your settings in the Wi-Fi service. It may be helpful to take screenshots of the various tabs in the preference pane. If the preference pane is locked, unlock it by clicking the padlock icon and entering your administrator password. Delete Wi-Fi from the service list on the left by selecting it and clicking the minus-sign button at the bottom. Then recreate the service by clicking the plus-sign button and following the prompts.
Step 5
Reset the System Management Controller.
Step 6
Reset the PRAM.
Step 7
Launch the Keychain Access application. Search for and delete all AirPort network password items that refer to the network. Make a note of the password first.
Step 8
Make a "Genius" appointment at an Apple Store, or go to another authorized service center.

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I've tried downloading various programs from Scan doctor to complete install of all HP programs and even tried installing printer from Windows 7 "add a printer", but none can see this printer.
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I believe printer, wireless network and PC are working correctly, this there a way to switch printer to online so it can be seen.
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Hello there! Welcome to the forums @Cushionman ,
I noticed your post about the issues you are having with connecting the printer to your network. I am wanting to offer you my suggestion that might help you out!
Click this link and then choose Windows 7, and "Solution two: Manually resolve the issue", and follow the steps from there: The Printer is Not Found During Wireless Network Installation in Windows
Let me know the results
R a i n b o w 7000I work on behalf of HP
Click the “Kudos Thumbs Up" at the bottom of this post to say
“Thanks” for helping!
Click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution!

Imac won't stay connected to wireless network

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