Can't connect via wired connection now. Msg says: "Wireless disable ethernet"

[Mazal]

Lo All ,

I picked up a weird problem this morning. I always use ethernet to connect to my network and have wireless disabled. This morning the ethernet refused to work stating that "wireless disabled ethernet".
My ethernet refused to work. I had to revert to wireless to get onto the network. I never had this problem before and didn't make any config or software changes. What causes this and how can I fix it ?

Kubuntu 11.04 64 bit (fully updated)
Acer Travelmate 5742G Laptop

Thanx

[bsniadajewski]

Re: Can't connect via wired connection now. Msg says: "Wireless disable ethernet"

Did you have Natty updated during the last time you were able to access the network via Ethernet?

[SteveRiley]

Re: Can't connect via wired connection now. Msg says: "Wireless disable ethernet"

What's the output of this command:

cat /etc/network/interfaces

[NoWorries]

Re: Can't connect via wired connection now. Msg says: "Wireless disable ethernet"

I hope that I am not over simplifying your problem, but I connect using either wired or wireless depending on the situation. I did have a message regarding not being able to connect to the network which was solved by clicking the Network Manager check boxes shown in the attached graphic.

[Mazal]

Re: Can't connect via wired connection now. Msg says: "Wireless disable ethernet"

Did you have Natty updated during the last time you were able to access the network via Ethernet?

Yes I did.

Here's the output of that command (currently at work though where there is no wired connection)

"auto lo
iface lo inet loopback"

@Noworries , everything is correct there , I did check and network was enabled there.