networking stops working after suspend/hibernate on Ubuntu 10.10 and it used to happen on 10.04 though i did not bother to resolve the issue then

output of sudo lshw -C network
-------------------------------

*-network DISABLED
description: Wireless interface
product: AR9285 Wireless Network Adapter (PCI-Express)
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:08:00.0
logical name: wlan0
version: 01
serial: 00:24:2c:6a:8d:27
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=2.6.35-22-generic firmware=N/A latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:17 memory:d1200000-d120ffff
*-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eth0
version: 03
serial: 00:23:8b:c5:eb:75
size: 100MB/s
capacity: 1GB/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full ip=172.24.16.40 latency=0 link=yes multicast=yes port=MII speed=100MB/s
resources: irq:45 ioport:2000(size=256) memory:d1004000-d1004fff memory:d1000000-d1003fff memory:d1010000-d101ffff
---------------------------------------------------

Hi there,
In ubuntu perhaps you can restart the icon on the top right hand side. It works for me - on a desktop though.
On my debian machine I log in as root and run /etc/init.d/networking start.
This should work for you. As far as 'why' of the issue is concerned I really do not know. Perhaps we might need to upgrade
Hope this helps.

Oops, sorry, I am using a mobile to post and I did not not see I had already posted.

I had the exact same problem with an HP Pavilion 480T... something I was reading was saying to turn networking services off in /etc/default/acpi-support. Haven't had a chance to try it yet