Hello comerads! sorry for my english.

Before Fedora i had Kubuntu 9.04 Jaunty alpha 5 on my desktop.Network was working,no problems at all. I'm using a cable connection with auto ip config,dns etc.
Anyway,even going into the os (no matter into wich one) for the first time, or from a liveCD,the connection didint need any configuration - everything was done automaticly.
Then i installed Fefora 11 alpha on a separate partition (sda5 - kubuntu, sda6 - fedora, sda-7 /home) - everything was ok with fedora install and working. After rebooting and going into Kubuntu my connection dissappeared.. it exists as "Auto eth0", but it isnt activated and theres written that it wasnt used at all. The configs are default - everything identifyies automaticly.Tryed searching the configs - everything is set as it needs to be,but cant figure out how to enable "Auto Eth0". Tryed several distros (clean install on freshly formatted partition) - Ubuntu,OpenSUSE,LinuxMINT,Gentoo,ArchLinux - internet is working only on the intalled FEDORA 11.Also i searched every known network setting in several distros and Desktop enviroments - KDE,GNOME,XFCE.I Dont know what to do.

Tell me maybe some command for fedora terminal (like "lshw") to show all availible network card and connection setting shown at one output or enything else what can help me!

I am very greatfull for any help.

Installing Fedora 11 will not affect your other distributions unless you erased network configuration files from them. Try this troubleshooting guide for Ubuntu and see if you can get your card to work. One thing I would try that I don't see in this guide is detecting hardware. Post the output of "lspci" or "lspcmcia" depending on your hardware. Look for a line that says "network" or "wired". This indicates that the system is detecting your hardware. Then you'll need to determine if the proper module is present by finding which module applies to your network card. You can see if it is present with the "lsmod | grep <module_name>".