Just an installed Windows Vista on an old Compaq N620 EVO laptop, but now I can not find a compatible driver for the Wireless LAN Multiport W200. Everything else works fine, but can't connect to the router because wireless is not running. Any help would be appreciated!

The most likely issue is the multiport is defective. The wired connection works because it doesn't use the multiport.

Yes you have to go to your internet's routers web setting page and change your settings from whatever you have now to WEP and follow these instructions.
Sup guys i found the cure to this horroble blue screen death for this N610c. Ok i called hp and they wanted $69.99 for tech support well just imagine what i told them to do lol. Anyway i did my research and guess what i found out. That the updated driver is made to screw up your connection so that you have to call tech support and they can steal your money.
Im a computer technician since 1990 and what i discover was that beautiful driver that works here is a list of drivers that cannot be used on the Evo N610C because it causes conflits that no one can fix i know for sure.
List of the no no drivers are:
These drivers will make your screen go from windows to BLUE.
sp29156
sp28252
sp29156
Here is how i fixed the problem i deleted everything that had to do with LANMultiport drivers every single one then i searched my laptop to remove the rest of the lost files.
Once that was done the i installed this driver (sp23031)
Once that was installed and the puter rebooted the wifi card found my wireless connection and asked me to input my Network Key and walla it works great now without any problems.
Im using windows XP Home i just bought memory cause im installing windows 7 32 bit.

Finally the key is this driver (sp23031) for both home and pro eddition.
Here is the link to download your driver:

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=hb-13082-1&lc=en&cc=fr&dlc=en&os=228&product=235687&lang=en

It works! Please hit me up a feedback

Yes is available W200 wireless device specially made for the evo.
This one:
http://cgi.ebay.com/COMPAQ-EVO-N610C-N620C-WIRELESS-LAN-W200-MULTIPORT-CARD-/110618603278?pt=LH_DefaultDomain_0&hash=item19c161ef0e

dear sir good day this problem used to appear when a bad driver is installed or a damaged windows in near so reinstall your system as Microsoft says in this article http://technet.microsoft.com/en-us/library/cc957609.aspx thank you

I would suggest you uninstall the drivers you have at the moment and download the ones that is here
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=316666&prodTypeId=321957&prodSeriesId=316664&swLang=8&taskId=135&swEnvOID=1093
try the mobile intel drivers .
Hope this helps
Thanks
Ranjit

yes i solved the problem. Remove the wireless lan. Start the computer go to regedit hkey_local_machine/software/Compaq Wireless LA delete it and restart. download SP23031 search on google and run without wireless lan W200. Restart with the card installed it will configure itself.

Check your router config for wireless "N". if it's there, disable it. You can also use the driver on the compaq to go back to the install of driver 1.0c

http://www.fixya.com/support/t612983-blue_screen_hp_wlan_multiport_w200 seems to have the solution.

It says:

Rollback the W200 driver to version 1.00C. Subsequent drivers are incompatible with XP SP2.

Unfortunately, WPA support came in version 1.00E, so W200 + XpSp2 = no WPA support. :(


I removed my wirelss drivers and compaq wireless client software, then installed the older driver from http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=hb-13082-1&lc=en&cc=fr&dlc=en&os=228&product=235687&lang=en which is sp23031. This seems to have worked.

ftp://ftp.hp.com/pub/softpaq/sp29001-29500/sp29156.exe
Here is the SP29156 that includes W200 drivers.
1. Delete the W200 in the device manager.
2. With the computer turned off, remove the W200 from the cover mounting( 1 screw).
3. Reboot with the W200 removed. Reinstall the Sp29156 Drivers to the system.
4. Reboot the system twice, with the W200 UNINSTALLED. Shutdown system.
5. Now replace the W200 in it's mounting area and secure with screw.
6. Now, reboot the system, it should again recognize PNP-new hardware and install itself with the correct IRQ's and drivers.
7. Save SP29156 in a safe place for use at a later date if needed.
8. Enjoy your now functional W200 module.
later...

Anyone who has this problem: the problem is with the W200 driver that HPclaims you should use. Download this driver instead and your problems should be fixed:

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=hb-13082-1&lc=en&cc=fr&dlc=en&os=228&product=235687&lang=en