If you have XP, install this driver http/h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-30227-1&lc=en&dlc=en&cc=us&os=228&product=500513&sw_lang=
If it's not working after that, you have a hardware failure, it's an older laptop so very possible. You can get an add-on LAN card for not a lot of money. Something like this http/www.google.com/products/catalog?hl=en&q=pcmcia+ethernet+network+card&um=1&ie=UTF-8&cid=17813124560161264233&ei=EcVSTaieM4O0lQf0z-jcCg&sa=X&oi=product_catalog_result&ct=result&resnum=9&ved=0CJQBEPMCMAg#
hi thanks for answer, but which u given those driver not working,i buy on usb ethernet hub , with that i am working , is that i replace my lan it will work