Please describe the problem:
In the given problem, the computer is connected to the Intranet via LRE. Sometimes, the link between LRE and switch breaks. Whenever this happens, Network manager shifts between connected and disconnected states. Then after a few attempts the interface is marked as disconnected. After some time, when the link between LRE and switch is re-established, the interface is still marked as disconnected. 
This problem is observed only when the link between LRE and switch is not re-established within some short duration (I guess some timeout is stopping it somewhere.)


Steps to reproduce:
1. connect computer via LRE
2. once connection is established, remove the wire to switch
3. re-insert the wire
4. repeat the above 2 steps ,say n, number of times.
5. perform step 2, wait for approx 15-30 sec, then re-insert the wire


Actual results:
NetworkManager will first detect the network and do the correct settings. After step 2, it will mark as disconnected, as expected. but then mark the network connected at step 3. after a long seres of iterations, when finally we reach step 5, even after reinserting the wire, the interface is still marked as disconnected

Expected results:
Either connect back, or give user a one-click option to try to re-establish the connection to the interface

Does this happen every time?
yes

Other information:
The only way I have found to get th connection back is to restart the service.sometimes I had to remove the cable connected to my machine as well, before i restart the service.