Wireless Always Fails

[upnort]

I am using CentOS 7 and Fedora 21 on a Thinkpad T400. On F21 wired and wireless work fine. Connecting and disconnecting the ethernet cable works fine with wireless adjusting as expected. With CentOS only ethernet works.

On CentOS when I manually configure NM for wireless, NM and ifconfig indicate there is a connection. Yet nothing goes through.

I am using the same NetworkManager/system-connections config files in both systems. Elsewhere I have been trying to compare the two systems but as yet have not found the stumbling block.

Any help appreciated.

[aks]

Start at the NIC level. Do you have an entry for the NIC (post ip link sh)? If not, the driver is not loaded. Then to the next level, do you have an IP address (post: ip addr sh)? If not, you're probably not authenicating your your AP.

[upnort]

The problem seems to have been two parts. One, several auto config connections were added to the NetworkManager (NM) list, which overrode my premade conf files. I had some success after deleting all of the auto made conf files. Full success after I realized NM was not automatically updating based upon the ethernet cable status.

On all systems that I have ever used NM, connecting and disconnecting the ethernet cable forced NM to automatically adjust between wired and wireless. This does not happen on CentOS 7. I always have to manually configure NM.

Any ideas why NM does not auto-adjust on CentOS 7?

Thanks.

[aks]

My NM "auto-adjusts" between wireless and wired - as I expect it to - but there is a bug in Fedora 20 (which RHEL 7 and thius CentOS 7 is based upon) - see https://bugzilla.redhat.com/show_bug.cgi?id=1050546

[upnort]

Okay, thanks. NM behavior is broken.