kubuntu-users Digest, Vol 86, Issue 10

[Leslie Anne Chatterton]

Hi Rajubhai,

With a wired connection there are far fewer variables to check out, but all
have to be correct. You are not using VirtualBox, Wubi or some other
virtual machine for one of the installations are you? That brings in
additional complications. How old is/are the machine(s) you are using?

You don't say specifically that you have both operating systems in a single
dual boot machine. Is that the case? If so the network adapter will be
identical (obviously!) but if not you could have a slightly different
version even if the manufacturer is the same. If on a different machine did
it ever work for you, with any operating system? If different can you
borrow a friend's laptop and see if it works on that network cable?
Wiggle the cable at both the computer end and the router or hub end.
Inspect the cable and RJ-45 connectors for wires that are pulled out or the
insulation damaged. A lot of problems are caused by cabling defects.

How do you get your IP addresses? Is it from your home router by DHCP (the
default) or is it set statically for the other operating system? Are there
other systems on the local network that might be causing an IP address
conflict?

Did you set up the 10.10 system yourself? If so it works the same in 11.04.
I'm assuming there is only one network adapter in the box.

What happens when you ping 127.0.0.1 or localhost in a terminal? If there
is a valid IP address it will return some data until you stop it with
Control-C. If not then something isn't set up correctly.

As far as I know the 11.04 kernel supports every network adapter that 10.10
supports, without any additional driver being needed.

Why not go right up to 11.10? It is a little more up to date than 11.04 and
might work. Since Kubuntu comes out with a new version every April and
October you might have better luck trying 12.04 late next month. I hope you
know that the Website (http://www.kubuntu.org/) has the recent versions,
free to download and burn to your own CD.

Have  you tried the live CD for other operating systems? No need to install
it to test it out. I recommend Puppy Linux (http://puppylinux.com/) as it
is small and fast. Network setup is a little different with Puppy but it
may give you some ideas where the problem might lie.

Try out some of these ideas and get back to us. Good luck!

Leslie Anne

Sent from my Motorola Xoom Android tablet
On Mar 5, 2012 11:38 AM, "Rajubhai Ramvani" <rajuramvani at gmail.com> wrote:

> > dear friend,
>> >        i newlly installed ubuntu 11.04 but i think network manager not
>> > installed corectly.network maneger is showing disable so i not can
>> update
>> > any  programme and i not can use internet.and i cant se any update
>> because
>> > internet not can i use.
>> >        so any body  can hellp me.
>> > rajuramvani
>>
>> On Monday 05 Mar 2012 7:17:05 AM Rajubhai Ramvani wrote:
>>
>> Are you using a wireless / wired connection ?
>> O/P of tried ifconfig eth0 / wlan0 depending on the answer to the earlier
>> question ?
>>
>> If you a dual-boothin with a diff OS, does the connection work on it?
>> Have you configured the same present settings on the Linux part & tried ?
>>
>> Plese be more specific
>>
>     dear sir,
> i am using both os 10.10 ubuntu and 11.04. i am using wired connection
> .and i am already using net in 10.10 .but i cant use net in 11.04. i dont
> know why.in ubuntu 11.04 network manager is disable so how can i enable
> it.
>        now i want use ubuntu 11.04 thats why i installed that but network
> manager not working so i am feeling difficulty.i cant update any programme
> and other features.
>      help me.
> rajuramvani.
>
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