Switched networks and now my MacBook Pro can not find my Deskjet Printer HELP!!!

Just installed new router.
I can not get my MacBook Pro to discover Deskjet Printer.
I have tried suggestions that I found on the internet but so far nothing seems to work

Replacing your wireless router try here.
http://www.hp.com/global/au/en/wireless/reconfiguring-system-help3.html
Say thanks by clicking the Kudos Thumbs Up to the right in the post.
If my post resolved your problem, please mark it as an Accepted Solution ...
I worked for HP but now I'm retired!

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HT4718 I recently upgrade my OS and now my MacBook Pro will not boot up

I recently upgrade my OS and now my MacBook Pro will not boot up

Reinstall Lion, Mountain Lion, or Mavericks without erasing drive
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu. Select Restart from the Apple menu.
Reinstall Mountain Lion or Mavericks
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.

Deleted all .kext files and now my macbook pro would not switch on. What do I need to do?

By mistake I deleted all .kext files in the extensions folder and now the macbook will not go past the error screen at the start up with panic kernel. What do I need to do? How do I restore from back up drive or even re install OS???

Are you able to get into Recovery Mode (Command+R) at startup?
If your back up is a Time Machine back up you can boot from it by restarting while holding the Option key and select the back up drive. From there you can reinstall OS X Mavericks or Restore.

Battery ran out, and now my MacBook Pro can't turn on?

My MacBook Pro ran out of battery 2 days ago, so I charged it up for like 2 hours before opening it again. It does not turn on, it takes an hour but still on the white screen with the gray apple logo. I figured letting it "rest" for the night will do the trick but the next morning, still nothing happened.
I tried looking for answers and came across the SMC Reset where you hold the left Shift + Ctrl + Option + Power button all together while charging. I tried that and the LED light on my MagSafe adaptor did change, so I thought yey it worked. But no, it didn't. It still won't open! It's driving me crazy. I also tried the Disk Utility repair where you press and hold Command + R after the chime, but my S.M.A.R.T. status appears 'Verified' so nothing's wrong, I even clicked the Repair Disk and then it says nothing's wrong. So I shut it down, and tried opening it one more time, and it still doesn't open.
I tried resting it for a day and it still won't open. And now I think I made it worse, because when I try to open it, the white screen with the gray apple logo will pop up but then for about 3 minutes it will shut itself down. :( My MacBook's resting for about 2 days now.
Please help me!

Hello! Thanks for the fast reply.
I tried the SMC reset (for the nth time), PRAM, and the Safe Boot. Unfortunately it still won't open. :(
When I tried the Safe Boot, the progress bar stopped at a certain length and won't load any further, and then it shut itself down. Like, 3 minutes after I tried doing the safe boot. I can't quite figure why it shuts itself down completely after a few minutes, I hope it's nothing serious. :(
I took a photo of it. I wish I could show you, but I'm on my phone and don't know how to upload a picture in here.

Help! I dropped my external HD and now my Macbook Pro will not recognize the drive. I have tried to repair the disk and that does not work. Please offer help, suggestions, something!

I dropped my external HD on my hard tile floor and now the drive is not working properly. I have tried a repair in Disc Ultilies with First Aid with no such luck. It started to work then I got a message "Filesystem verify or repair failed" about 3-4 minutes into the first aid repair disk. When I plug in I get the disk you inserted was not readable by this computer message. Please I need help on restoring this drive!
Its a simple tech pro drive 1TB.

Unfortunately, a drive that has been mechanically damaged by a drop and can't be repaired using Disk Utility probably can't be fixed any other way either. The best you can hope for is to salvage as much data from the drive as possible using one of the data recovery utilities linked below, and then replace the drive.
http://www.prosofteng.com/products/data_rescue.php
http://subrosasoft.com/OSXSoftware/index.php?main_page=product_info&products_id= 1
http://download.cnet.com/VirtualLab-Data-Recovery/3000-2094_4-10298807.html
If you can't recover your most important data using one of these utilities, the only remaining hope is a data recovery service, which is very likely to cost $1000 or more for a 1TB drive.

My MacBook Pro can not find my internal hard drive.

My computer does come on. And I have a MacBook Air 2009. Just some history, my computer froze on me one day. So I restart it and a screen with a folder and question mark showed up. So I called apple and got some trouble shooting done. Nothing worked. So they ended up sending me another installer disk. And that did not work. Could not find my internal hard drive. So I took it to a apple store and the guy who looked at it told me that it was water damaged and would cost $700 to fix. So I pushed it to the side for year and decided to take a further look into it recently. And found some information where people had the same issue and was advices their hard drive could be dead. So I'm thinking about getting a 2nd opinion and taking it some where else. I'm just wondering could I really just replace my hard drive and be fine with my computer? If its really water damaged wouldn't it not work? Does replacing the hard drive cost a lot to do?

Its extremely unlikely your HD is water damaged, everything on your internals in your macbook Pro would FRY long before water seeped its way into your HD,....the HD circuitry on the outside of the HD however is another story.
If your computer IS in fact water damaged, then yes, replacing the hard drive wouldnt fix anything.
Replacing the HD yourself , IF your HD is dead and at fault, can be done by yourself easily and cost around $65.
In any regard, on a 2009 computer....., 700$ could buy you a nice MUCH NEWER and faster like new refurbished MAC,........as such it would be best not to consider such an option.

I recently updated to Mavericks, and now my macbook pro will not boot

Last week I updated my summer 2011 mackbook pro to the Mavericks OS, Now all I get when I turn it on is the grey apple logo and the loading wheel.
Ive tried booting in safe mode and it made no difference.
I left it loading for about 2 hours and it managed to boot up, it then took a further 40 minutes to load after I typed in my password but then I couldn't do anything.
Any help or suggestions? do you think if I to the genius bar they would be able to fix it?

There's really no telling what's wrong with your machine. A trip to your local Apple Store may be warranted as they have the diagnostic testing equipment to find out if you've a hardware or software problem.
Good luck,
Clinton

I recently did a full reinstall from my time machine and now my MacBook pro won't back up to the time machine. It starts a full backup ignoring the original back up, can anyone help?

I recently did a full reinstall from my time machine and now my MacBook pro won't back up to the time machine. It starts a full backup ignoring the original back up, can anyone help?

Did you follow the instructions on the page linked below?
OS X Yosemite: Recover your entire system

I am in an internet cafe and my macbook pro can't find the wireless network available here. I have used this network before. I have restarted my machine several times too. help please

I am in an internet cafe and my macbook pro can't find the wireless network available at the cafe. I have used this network before. I have restarted my machine several times too. help please

Change your router channel. Sometimes this is all you will have to do.
Power cycling the router. Read the router's user manual or contact their tech support for instructions.
System Preferences/Internet & Network/Network
Unlock the padlock
Locations: Automatic
Highlight Airport
Click the Assist Me button
In the popup window click the Diagnostic button.
System Preferences/Network- Unlock padlock. Highlight Airport. Network Name-select your name. Click on the Advanced button. Airport/Preferred Networks-delete all that is not your network.
Place a check mark next to "Remember networks this computer has joined." Click the OK button and lock the padlock. Restart your computer.
http://support.apple.com/kb/TS1920 Mac OS: How to release and renew a DHCP lease
No internet connection (wireless)
Check to see if an extra entry is present in the DNS Tab for your wireless connection (System Preferences/Network/Airport/Advanced/DNS).
Delete all extra entries that you find.
Place a check mark next to "Remember networks this computer has joined."
Other resources to check into:
http://www.netspotapp.comNetspot
How to diagnose and resolve Wi-Fi slow-downs
Pv6 troubleshooting
Mac OS X 10.6 Help: Solving problems with connecting to the Internet
What Affects Wireless Internet?
Solutions for connecting to the Internet, setting up a small network, and troubleshooting

I upgrated for the latest version of itunes and now my Macbook Pro its 1000000 time slower

I downloded some update for the Itunes, and now my Macbook Pro its toooooo slow, I dont know what do to anymore. I even reinstalled the whole system. Can anybody help me???

Do the following. There's nothing of interest in the Activity Monitor data.
Things You Can Do To Resolve Slow Downs
If your computer seems to be running slower here are some things you can do:
Start with a visit to: OS X Maintenance - MacAttorney.
Boot into Safe Mode then repair your hard drive and permissions:
Repair the Hard Drive and Permissions Pre-Lion
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
Repair the Hard Drive - Lion
Boot from your Lion Recovery HD. When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Restart your computer normally and see if this has helped any. Next do some maintenance:
Suggestions for OS X Maintenance
For situations Disk Utility cannot handle the best third-party utility is Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible.
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such asMacaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts was significantly reduced since Tiger. These utilities have limited or no functionality with Snow Leopard or Lion and should not be installed.
OS X automatically defragments files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive. As for virus protection there are few if any such animals affecting OS X. You can protect the computer easily using the freeware Open Source virus protection software ClamXAV. Personally I would avoid most commercial anti-virus software because of their potential for causing problems. For more about malware see Macintosh Virus Guide.
I would also recommend downloading a utility such as TinkerTool System, OnyX 2.4.3, or Cocktail 5.1.1that you can use for periodic maintenance such as removing old log files and archives, clearing caches, etc.
For emergency repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the command line. Note that AppleJack 1.5 is required for Leopard. AppleJack 1.6 is compatible with Snow Leopard. There is no confirmation that this version also works with Lion.
When you install any new system software or updates be sure to repair the hard drive and permissions beforehand.
Get an external Firewire drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Carbon Copy Cloner
2. Data Backup
3. Deja Vu
4. SuperDuper!
5. SyncTwoFolders
6. Synk Pro
7. Synk Standard
8. Tri-Backup
Visit The XLab FAQs and read the FAQs on maintenance, optimization, virus protection, and backup and restore.
Additional suggestions will be found in Mac maintenance Quick Assist.
Referenced software can be found at CNet Downloads or MacUpdate.
Additional Hints
Be sure you have an adequate amount of RAM installed for the number of applications you run concurrently. Be sure you leave a minimum of 10% of the hard drive's capacity as free space.
Add more RAM. If your computer has less than 2 GBs of RAM and you are using OS X Leopard or later, then you can do with more RAM. Snow Leopard and Lion work much better with 4 GBs of RAM than their system minimums. The more concurrent applications you tend to use the more RAM you should have.
Always maintain at least 15 GBs or 10% of your hard drive's capacity as free space, whichever is greater. OS X is frequently accessing your hard drive, so providing adequate free space will keep things from slowing down.
Check for applications that may be hogging the CPU:
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time, then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Often this problem occurs because of a corrupted cache or preferences file or an attempt to write to a corrupted log file.
If none of the above help, and they may not, then this should:
Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

My macbook pro can not found any network WI-FI

My mac book pro can not found any network in wifi but after turn of and turn on WI-FI for more than 10th it can found network and of course my network
interesting is when i leave my room with my labtop without any trun of or on wifi, network can detect every WI-FI!!!
any ideia ??

Hi alirezaDavid,
If you are having WiFi issues with your MacBook Pro, you may find the following article helpful:
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Regards,
- Brenden

I was messing around with .kext files in the MacintoshHD and now my MacBook Pro won't start up.

I was messing around with .kext files in the MacintoshHD and moved the system.kext and two others to my desktop and deleted the originals and now the MacBook Pro won't start up. All I get at start up is the apple icon then a bunch of text shows up part of which says Mac OS version: not yet set. then the apple icon turns into the power icon and tells me to turn off the computer. I've tried reinstalling from the install DVD by holding down option when powering on and selecting the install DVD and it just goes to a white screen with the apple icon and stays like that. I didn't have the disk utility on my Mac before this happened because I deleted it to make room on my computer a while ago so I'm not sure if that's why it won't load the install DVD but anyone who knows the solution to this with out going to get it repaired would be greatly appreciated. Thank you!

Never mind my dad just found the original install DVD and that worked. Before I was using an install disc that Apple sent me for another issue I was having, but thanks for replying so quickly and trying to help on this Thanksgiving day!!!

Recently we changed our Lynksys router to an Airport Extreme and now my MacBook Pro running 10.6.8 will not stream radio through Itunes without constantly rebuffering. Any ideas?

Recently we changed our Lynksys router to an Airport Extreme and now my MacBook Pro running 10.6.8 will not stream radio through Itunes without constantly rebuffering. Any ideas?

Recently we changed our Lynksys router to an Airport Extreme and now my MacBook Pro running 10.6.8 will not stream radio through Itunes without constantly rebuffering. Any ideas?

HT1338 problems with OS X Lion. I upgraded and now my macbook pro has been crashing...

I am having problems with OS X Lion. I upgraded and now my macbook pro has been crashing... what's going on? and someone please help !!!!

If you have more than one user account, you must be logged in as an administrator to carry out these instructions.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Select the most recent panic log under the heading System Diagnostic Reports on the left. If you don't see that heading, select
View ▹ Show Log List from the menu bar. Post the entire contents of the panic report — the text, please, not a screenshot. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header and body of the report, if it’s present (it may not be.) Please don't post shutdownStall, spin, or hang reports.

Macbook Pro can't find Wifi after closing

I moved house and got a new wifi provider. My Macbook Pro can't find it sometimes after I close my Macbook which forces me to restart for it to join the network automatically. SOMETIMES I get a popup window with networks that it picks up and SOMETIMES my network is listed and I can select that, but not all the time. Why cant my Macbook find my network sometimes? It can find everybody elses except mine!

Wi-FI connection drops
Wi-Fi Problems in OS X Yosemite
Wi-Fi Problems in OS X Yosemite (2)
Wireless Diagnostics
Also try turning off Bluetooth.
Troubleshooting Wi-Fi issues in OS X
Wireless Connection Problems - Fix
Wireless Connection Problems - Fix (2)
Wireless Connection Problems - Fix (3)
Wireless Connection Problems - Fix (4)

Switched networks and now my MacBook Pro can not find my Deskjet Printer HELP!!!

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