I have home broadband and my net connection seems drop very often. It used to work before, no recent changes were made to PC. When I load via Live CD, my router config page loads up when I enter its ISP. However, it doesn't load when I run a HD installed OS. (I Use Debian which is a Knoppix HD install).

Upon shut down of the Hard Drive OS, it gives an error message: unable to read /etc/network/interfaces

Also, I tried to go into networking and in Control
Center and tried to enable eth0, but always fail to do so, it always has an X on it and says disabled.

So, to get net for now I use PPPoE config everytime I start my PC, even then it drops after some time. Seems to be happening more frequently of late. This path basically by passes the router.

Here is my /etc/network/interfaces:
# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)

# The loopback interface
# automatically added when upgrading
auto lo
iface lo inet loopback


auto dsl-provider
iface dsl-provider inet ppp
provider dsl-provider

auto eth0






iface eth0 inet dhcp



auto eth0

iface eth0 inet manual

auto eth0

iface eth0 inet manual

auto eth0

iface eth0 inet manual

auto eth0

iface eth0 inet manual

auto eth0

iface eth0 inet manual

auto eth0

iface eth0 inet manual

auto eth0

iface eth0 inet manual
vijay@box:~$


Permissions seem ok for that file.

vijay@box:~$ ls -l /etc/network
total 12
drwxr-xr-x 2 root root 152 May 4 2006 if-down.d
drwxr-xr-x 2 root root 176 May 4 2006 if-post-down.d
drwxr-xr-x 2 root root 240 May 4 2006 if-pre-up.d
drwxr-xr-x 2 root root 152 May 4 2006 if-up.d
-rw-r--r-- 1 root root 0 Jul 27 2004 ifstate.hotplug
-rw-r--r-- 1 root root 548 Jan 23 00:27 interfaces
-rw-r--r-- 1 root root 166 Feb 22 2005 interfaces-
-rw-r--r-- 1 root root 45 May 11 2001 options
drwxr-xr-x 2 root root 72 Jan 22 19:25 run

Even if I boot via live CD and the router is detected well, still the connection seems to drop.

Any solutions welcome.

Here is ls -l for /etc/sysconfig/ below

vijay@box:~$ ls -l /etc/sysconfig/
total 44
drwxr-xr-x 2 root root 272 Sep 9 06:24 2.6.17
-rw-r--r-- 1 root root 14 Jan 22 19:25 desktop
-rw-r--r-- 1 root root 52 Oct 1 11:19 firewall
-rw-r--r-- 1 root root 70 Jan 22 19:25 i18n
-rw-r--r-- 1 root root 79 Jan 22 19:25 keyboard
-rw-r--r-- 1 root root 589 Jan 22 19:25 knoppix
-rw-r--r-- 1 root root 99 Jan 22 19:25 mouse
-rw-r--r-- 1 root root 82 Jan 22 19:25 netcard
drwxr-xr-x 2 root root 48 Jun 17 2001 network-scripts
-rw-r--r-- 1 root root 4 Sep 9 06:10 progress
drwxr-xr-x 2 root root 192 Mar 22 2003 provider
-rw-r--r-- 1 root root 98 Jan 22 19:25 sound
-rw-r--r-- 1 root root 94 Jan 22 19:25 xserver
-rw-r--r-- 1 vijay vijay 12 Sep 9 06:10 xsession-commands


Vijay

I checked from Live CD. Correct file looks like below.

# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)

# The loopback interface
# automatically added when upgrading
auto lo
iface lo inet loopback

Edited my file to appear as above. Still no progress.

Also on boot says
/etc/network/options is deprecated
here is this file from my PC:
vijay@box:~$ cat /etc/network/options
ip_forward=no
spoofprotect=yes
syncookies=no

This problem was solved recently. I was using the wrong adapter(A) with my modem. This A gave only 9V while 15V was needed. Also the amperes was much lesser. The wrong A belonged to an old cordless phone and looks in shape, color, size very close to the correct A. Accidentally when replugging I interchanged the two. It is important to mention that using an A with much higher voltage could have even caused a fire. With a lot of A's these days one needs to be extra careful not to interchange them and this is one more thing to watchout for.

Vijay