New router install crashes wireless laptop

I just installed a WRT54G2 router today. The PC that the router is installed on is fine and can access the internet, but when I powered up my laptop to use wi-fi on it to access the internet, the laptop will not come up to the desktop. It stops with a long error message and says a problem has been encountered and Windows has been shut down. If I unplug the power cord for the router, the laptop comes up fine but says that a "serious problem" was encountered but corrected. If I bring up the laptop with the router powered off, the laptop comes up fine but as soon as I power on the router, the laptop crashes with the same error message as above. (??!!) Any ideas?

This is not the router, but instead a bad device driver in your pc. If you have an internal wifi card go to device settings and remove it then reboot your pc and it will reload to original settings.
If you installed a wireless linksys card remove the card and its drivers, reboot and reinstall.

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After having a new router installed by our cable supplier, I have been unable to use my printer with my laptop nor my desktop computer. Do I need to uninstall and reinstall my printer on both computers?

Replacing/changing your wireless router try here.
http://www.hp.com/global/au/en/wireless/reconfiguring-system-help3.html
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If my post resolved your problem, please mark it as an Accepted Solution ...
I worked for HP but now I'm retired!

Printer no longer detected after new router installed. Tried everything. Please help!!

I have a Photosmart 2575 printer which has worked well for a number of years. It has a wired connection to my router.
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This question was solved.
View Solution.

Success at last, but only after many hours of trawling through HP and Microsoft forums, and numerous attempts to make the connection!
But here's a summary of what I did for anybody else with this issue:-
1. I meticulously removed every trace of anything to do with HP from my PC and disconnected the printer from the network router.
This requires numerous "level 4" uninstalls to clear any previous falied installs and deleting everything in the temp file afterwards:-
1. Press the Windows key, and the letter R
2. Type %temp%
3. Press Enter, or click OK
4. Open the 7z folder
5. Open the util folder
6. Open the ccc folder
7. Double click the Uninstall_L4
2. Using Control Panel_Programs and Features, uninstalling anything left that might be HP related
3. Carrying out a disk clean up using Start_Accessories_System Tools_Disk Cleanup and repeating this for system files
4. Follwing the procedure found from the following link to check that the print spooling is working, and that any dependencies are "started":-
Link to post
In that thread there is a further procedure to follow which requires opening a command prompt in administrator mode and carefully inputting the command line
sc config spooler depend= RPCSS
(note the space after the = but not before)
5. Running msconfig.exe and on the general tab, clicking "selective startup", unchecking "load startup items", then on the services tab, hiding all microsoft services, and deselecting all items [remember afterwards to re-run and go back to a normal startup!]
6. Restart PC
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I had to replace a Linksys router WRT54G with a newer model WRT1900AC Dual Band. The printer was working fine with the old router. Now I use the Wireless Wizard to set up the new router and it locks up. The only way to "free" it up is to turn the router off and turn the printer off, then turn the printer back on and turn the wireless radio off. I am using a Mac running OSX 10.8.5. I see in other forums to update firmware but that appears only to be on the windows side.
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Hello @3408RaissaS,
Welcome to the HP Support Forums!
I understand that you're experiencing issues when attempting to configure wireless on your HP Officejet Pro L7780 All-in-One Printer with your new wireless router. I would like to assist you today with resolving this issue.
Now, due to the age of your printer there is no Firmware Updates available for your model of printer on your Operating System. Therefore, this will not be an option for your specific unit.
Because the printer worked wirelessly with your old router we know that the wireless card within your printer is functioning. Therefore, there may be a setting within the router that needs to be adjusted to allow for your HP Officejet to connect and communicate wirelessly.
Just to confirm, at which point does the printer freeze up (after you select your network name, enter your password, or when it tries to connect to the network)?
Because you're now using a dual band router it is crucial that you are connecting your printer to the 2ghz band. Printers are not supported on 5ghz connections. This means that the computers that you want to use wirelessly with your printer must also be connected to the 2ghz band. If you're not sure how to check what band you're connecting to, you may need to speak with the router manufacturer.
Please respond to this post with the answer to my question above. Once I have a bit more detail I will be happy to guide you towards a fix. I look forward to hearing from you!
X-23
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.
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Not sure if this will help, but you might check your router settings again this:
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I have a HP Photosmart Plus B209a-m. I restored the printer network to default settings and cannot connect to either the new or the old router

TBRM
Welcome to the HP Community Forum.
If you have not already done so, you might try installing / reinstalling the Full Feature Software for the printer.
The installation procedure may help resolve the connection issues.
General Instructions to Install the Printer Software
Reminder:
In most cases, the Solution Center has been replaced by the Printer Assistant.
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Windows Operating System:
Create Restore Point: Create a Restore Point – Win7 OR Create a restore point Win8
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OR
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Look at the bottom half of the main webpage for your printer for helpful videos to assist with the installation of the printer software!
Scroll the video list back and forth until you find the video that most closely matches your situation.
If using a USB connection: Download and install the driver software before connecting a USB cable.
Ethernet: Connect the printer to the network and (Optional) assign the printer an IP address at the router. Once the printer is connected to the network, be sure the printer is switched on and then install the printer software.
After the initial installation is complete and working, check / install Category - Update
There is valuable information at the support website, including sections for Manuals, Troubleshooting > How-to, Troubleshooting > Solve a Problem, plus alerts and notifications for your printer. Be sure to take an extended look at what is available. Bookmark the page.
==========================================================
More Help:
Wireless Printing Center – Replacing your wireless router
Wireless Printing Center – Wireless Printing Videos and Tutorials
Click the Kudos Thumbs-Up to show you appreciate the help and time from our Experts.
Although I strive to reflect HP's best practices, I do not work for HP.
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Please download and install the full feature software and drivers from the HP web site. Now try.
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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http://www.usa.canon.com/cusa/consumer/standard_display/contact_us_consumer
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Regards
Milos

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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!

New router install crashes wireless laptop

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