The problem is being unable to wirelessly connect to a local wifi router, which has no encryption.
The iMac does not see any nearby networks. However, my windows notebook sees 2 nearby networks, and is currently connected to the local wifi router.
The local router is a Linksys WRT54G.
When I click on the wifi symbol on the iMac, a menu is displayed:
Turn AirPort Off
No network selected (greyed out)
Create Network ...
(checked) Use Interference Robustness
Open Internet Connect ...
What I want to see is a list of nearby networks that can be chosen, but have not yet been able to make that happen.
If I try to define a Closed Network with the proper name and no wireless security, an error box is displayed:
"there was an error joining the Airport network "networkname".
If I try to define a new network, a "Computer-to-Computer" box is displayed. The Name is already prepopulated with a descriptive name of the computer, and Channel is Automatic (11).
If I open Internet Connect, an "AirPort" box is displayed. AirPort Power: On. Network: No network selected. Signal level is zero. Base Station ID: Not Available. (checked) Show AirPort status in menu bar. Status: Not associated with any network, status not available.
OS is Mac OS X Version 10.4.11
Processor: 1.6Ghz PowerPC G5
AirPort Card Information:
Wireless Card Type: AirPort Extreme
Current Wireless Network: wireless network not available
The Network Utility reports:
en1 is the wifi adapter
IP Address: 126.96.36.199 (--> strange, because my windows wifi adapter gets 192.168.1.107)
ifconfig shows the following for en1:
flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether (mac address)
media: autoselect (<unknown type.) status: inactive
supported media: autoselect
Your help is greatly appreciated!