Bug 558382

What network connection do you have ?

please run 'yumex -d' in a termial an add the output in this report

(In reply to comment #1)
> What network connection do you have ?
> 
> please run 'yumex -d' in a termial an add the output in this report    

I'm having the same issue on my desktop with Fedora 11, version 2.9.6 and a wired Ethernet connection.  My laptop has Fedora 12, version 2.9.4 and works fine.  Output from 'yumex -d' on the desktop follows:

[joe@khorlia ~]$ yumex -d
running
Current Settings
    autorefresh: True
    branding_title: 'Yum Extender NextGen'
    color_install: 'darkgreen'
    color_normal: 'black'
    color_obsolete: 'blue'
    color_update: 'red'
    debug: True
    disable_repo_page: False
    history_limit: 15
    plugins: True
    proxy: ''
    recentdays: 14
    repo_exclude: ['debug', 'source']
    win_height: 600
    win_sep: 300
    win_width: 1000
    yumdebuglevel: 2
/usr/lib/python2.6/site-packages/guihelpers/__init__.py:199: GtkWarning: gtk_scrolled_window_add(): cannot add non scrollable widget use gtk_scrolled_window_add_with_viewport() instead
  self.add_from_file(filename)
Not connected to an network
DEBUG: Getting package lists - BEGIN
Starting yum child process
DEBUG: Initialize yum backend - BEGIN
DEBUG: Using yum debuglevel = 2
YUM: Loaded plugins: dellsysidplugin2, fastestmirror, presto, protectbase
No network connection, disable non local repo adobe-linux-i386
No network connection, disable non local repo fedora
No network connection, disable non local repo livna
No network connection, disable non local repo rpmfusion-free
No network connection, disable non local repo rpmfusion-free-updates
No network connection, disable non local repo rpmfusion-nonfree
No network connection, disable non local repo rpmfusion-nonfree-updates
No network connection, disable non local repo updates
DEBUG: Initialize yum backend - END
DEBUG: Sending command: get-packages args: ['updates', 'False']
YUM: Populating Package Cache
YUM: Loading mirror speeds from cached hostfile
YUM: getting packages - updates 
DEBUG: Yum Child Task: Command get-packages took 4.95 s to complete
DEBUG: Sending command: get-packages args: ['available', 'False']
YUM: getting packages - available 
DEBUG: Yum Child Task: Command get-packages took 0.00 s to complete
DEBUG: Sending command: get-packages args: ['installed', 'False']
YUM: getting packages - installed 
DEBUG: Getting package lists - END
DEBUG: Getting Group information - BEGIN
DEBUG: Getting Group information
DEBUG: Yum Child Task: Command get-packages took 7.71 s to complete
DEBUG: Sending command: get-groups args: []
YUM: Loading mirror speeds from cached hostfile
YUM: No Groups Available in any repository
DEBUG: Getting Group information - END
DEBUG: Getting History Information - BEGIN
DEBUG: Yum Child Task: Command get-groups took 0.00 s to complete
DEBUG: Sending command: get-history args: []
History Disabled
DEBUG: Getting History Information - END
DEBUG: Yum Child Task: Command get-history took 0.00 s to complete
DEBUG: Sending command: get-repos args: []
DEBUG: START: Getting updates packages
DEBUG: START: Adding updates packages to view
DEBUG: END: Getting updates packages
DEBUG: Quiting the program !!!
DEBUG: Yum Child Task: Command get-repos took 0.01 s to complete
DEBUG: Sending command: exit args: []
Closing rpm db and releasing yum lock
DEBUG: Forcing backend to close
yum backend process is ended
DEBUG: Backend reset completted
[joe@khorlia ~]$

yumex-2.9.7-1.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/yumex-2.9.7-1.fc12

Why not Fedora 11?

I has push it for Fedora 11 too, but forgot to add the bug numbers

https://admin.fedoraproject.org/updates/yumex-2.9.7-1.fc11

yumex-2.9.7-1.fc12 has been pushed to the Fedora 12 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update yumex'.  You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F12/FEDORA-2010-1383

I just updated to yumex 2.9.7 on Fedora 11, from fedora-updates-testing to try to work around another yum issue, but I'm still getting the error of not being connected to a network.  However, I edited the Preferences, checked the box labeled Disable startup network check, restarted it and it works.  I'll also report this at the feedback link you provided.

yumex-2.9.7-1.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

yumex-2.9.7-1.fc12.noarch still has problem 
Not connected to an network
Do you want to continue

Yum does not work fine

you can add 'disable_netcheck=1' in /etc/yumex.conf

or run 

yum --disable-netcheck

I configured network with system-config-network and stopped service NetworkManager
With NetworkManager running yumex will not work(network is up).

Not sure if problem is with NetworkManager or yumex or somewhere else.
I would guess all 3.

I do not use NetworkManager and long ago disabled it.  Yumex on F 11 only works if I disable-netcheck.  Yumex does not "work fine."

I have made the check a little better upstream, so if NetworkManager is not running it will run as online, and only be offline if NetworkManager is running and is not connected.