Network enable/disable repair - now unable to

Have recently set up LAN for ethernet hard drive, primarily to increase
storage for laptop.
In the past when connecting to networks I have been able to enable/disable
and repair both wired and wireless network connections when required or
necessary ( using an administrator account ) from the network connections
window.
 I am now unable to do this,
   with wireless
 1) Repair - Get message in dialog, Unable to do this, unable to disable
wireless network adapter. Make sure network adapter correctly installed ,
Have successfully uninstalled and reinstalled wireless network adapter. No
Change.
 2)Enable/Disable - Get message in dialog, It is not possible to
Enable/Disable the connection at this time. This connection may be using one
or more protocols that do not support Plug-and-Play, or it may have been
initiated by another user or the system account.
   with wired
 1) Repair - Get message Anable to diable ARP cache
 2)Enable/Disable - Get message in dialog, It is not possible to
Enable/Disable the connection at this time. This connection may be using one
or more protocols that do not support Plug-and-Play, or it may have been
initiated by another user or the system account.

 I am able to do disable the devices using the device manager, but this is
really for faults with the devices.
 I usually disable the devices when not networking ( most of the time) to
increase battery time.

 I have checked Local Computer policy - none of the keys in
     Local Computer Policy / User Configuration / Administrative Templates /
Network / Network Connections
 are configured.

   I have recently installed latest drivers from Dell support. This did not fix the problem. 

 Is it possible to return to old settings with enable/disable repair
available from network connections window ?

System:  Dell Inspiron 9300