I upgraded from 11.04 to 11.10, and that was working fine for days. Then I responded to a notification that there were software updates for 47 packages. I ran Software Update and the next time I rebooted, I no longer had network access!
I plugged in an external USB drive with CentOS 5 Live CD on it and the Dell hardware works correctly, both seeing networks and accessing the internet from CentOS.
PC: Dell GX-260
Running lshw under Ubuntu 11.10 shows that it finds:
description: Ethernet interface
product: Intel 82540OEM Gigabit Ethernet Controller
vendor: Intel Corporation
Please help me resolve my Ubuntu networking issue(s). This PC has been offline for days!
Thank you in advance for any and all help, guys and gals!