Connection to Internet goes in and out

[JoeS]

Using Debian Lenny.

I have been having problems with the Internet the last couple weeks.
I lose my connection to the Internet and then I'll get it back. I haven't
changed any config files, so don't know why this is happening.

I have XP installed on another partition and when I lose the connection
with Debian I switch over to check and the connection there is good.

I have included some info below:

etc/network/interfaces
The loopback network interfaceE]
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth1
iface eth1 inet dhcp
hostname Debian

ethtool eth1

Settings for eth1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised auto-negotiation: Yes
Speed: Unknown! (65535)
Duplex: Unknown! (255)
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: umbg
Wake-on: g
Current message level: 0x00000007 (7)
Link detected: no

lspci -nn

02:0c.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit Ethernet Controller [8086:100e] (rev 02)

I'm not sure what else to include.
Would appreciate any help.

[rokytnji]

Howdy JoeS.

What Network manager are you using? If Wicd. I find in my AntiX 8.5 Debian Squeeze WICD 1.7.0 That under Preferences>External Programs setting mine from Automatic to dhclient works better at not dropping connections.

[JoeS]

I'm using Network Manager. I think it is the problem. It wants to pick the wrong
card: eth0 and I am using eth1. I can't find a way to change it.
I disabled it and used:
dhclient and this got a connection. I think I will have to find another program or
live without it. I can have a connection and then later in the day I can try to
use the Internet and the connection has been lost. Network Manager drops it
for some reason.

[rokytnji]

I think I will have to find another program

I have more than just one (Wicd) installed. I also have Ceni installed also.

[JoeS]

Thanks. I'll check those out.