I am using Ubuntu 12.04 and I accidentally uninstalled the Network Manager. But after re-installing it, I can no longer get any wireless network. Before that, a number of wireless networks were detected.
hlabishi@hlabishi-desktop:~$ sudo lshw -c network [sudo] password for hlabishi: *-network description: Ethernet interface product: 82578DC Gigabit Network Connection vendor: Intel Corporation physical id: 19 bus info: pci@0000:00:19.0 logical name: eth0 version: 06 serial: 00:27:0e:0f:7e:ac size: 100MB/s capacity: 1GB/s width: 32 bits clock: 33MHz capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=1.0.2-k2 duplex=full firmware=0.12-5 ip=172.16.39.34 latency=0 link=yes multicast=yes port=twisted pair speed=100MB/s resources: irq:26 memory:fe400000-fe41ffff memory:fe427000-fe427fff ioport:f020(size=32)
How do I resolve the issue?