It seems it was a driver problem because once I installed the driver supplied by realtek rtl819Xe The network manager connected every time without the need to delete the connection details like password etc.
see the post here: http://ubuntuforums.org/showthread.php?p=10014569 -- Wireless fails after reboot on Samsung N130 (RTL 8192E) https://bugs.launchpad.net/bugs/660562 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
