Error connecting to the internet

Please confirm that you are running Tiger 10.4.11.

How are you trying to connect to the internet?

I am positive that the passwords are correct.

Must be a wifi network. That's hardder. First get a cable and cable connect. That will sort out that you have you internet software set up correctly.

For the wifi, disable the password. see if you imac connects. What type of encryption are you trying? Could the imac doesn't support the encryption. Try wep. Wep is next to worthless, but at least it will show someone break in when they get in over wifi.

look through here and figure out what type of wifi hardware you have.

What iMac do you have?

Report system info

Blue apple > about this Mac

click on more info

click on hardware

do not copy your serial number

For your hardware, I meant for you to look around and see what type of wifi device you have.

I'd guess your wifi hardware doesn't support the newer wifi encryption.

Ethernet Bridge Solutions

1. Ethernet Bridge
   "The versatile Wireless-G Ethernet Bridge can make any wired Ethernet-equipped device a part of your wireless network." from linksys. The supports both web browser based or program configuration. For the program, you need mac os x 10.5 or greater or windows xp to configure. Once configured, you can use it on any ethernet port.
   http://www.amazon.com/Linksys-RE1000-Wireless-N-Range-Extender/dp/B005FDXMJS/ref =sr_1_1?ie=UTF8&qid=1314563758&sr=8-1
   (examples include Netgear WNCE2001 and Linksys WET610N)
2. Airport Express
   Airport Express is an external unit and you can configure it as a bridge. 802.11n ( You will need a more modern version of Mac OS X to configure. Sadly, Apple uses a configuration program to configure, not a web browser. ) Please note this requires mac os x 10.5??? or greater to configure or windows xp to configure. Please verify requirements before buying. Once configured, you can use it on any ethernet port.
   https://www.apple.com/airportexpress/
3. Netgear WNCE2001
4. Linksys WET610N are only two bridge examples.

USB Adapters

1. BearExtender
   http://store.bearextender.com/products/bearextender-mini
2. Newer Technology MAXPower 802.11n/g/b USB Adapter. New Technology has made these adapters for a while this one is for OS X 10.5 and greater.
   http://eshop.macsales.com/item/Newer%20Technology/MXP3802NU2C/
3. Newer Technology MAXPower 802.11n/g/b USB Adapter. New Technology has made these adapters for a while. What Mac OS they supports changes over time. Be careful which one you get. Amazon claims to be selling older ones as of 2/16/2013. http://www.amazon.com/NewerTech-MAXPower-802-11n-Wireless-Extension/dp/B00132CMN C
4. Tenda W311M
   http://www.microcenter.com/product/373032/W311M_150Mbps_Wireless_N_USB_20_Adapte r
   Most of the real work is done in software. Took 15% to 25% of the processor in my iMac G3 600 :(
5. Edimax EW-7722UTn -- 300Mbps Wireless 802.11b/g/n Mini-size USB Adapter
   http://eshop.macsales.com/item/Edimax/EW7722UTN/Specs
   10.4 / 10.5 / 10.6 / 10.7 / 10.8

The letters n/g/b correspond to the speed of the data transfer. You should match the speed to your existing router. You best match on the highest speed. N is the highest. G is middle. b is lowest.