Oracle listener not running and won't start

Question

I am getting the following errors while from the lsnrctl status command:

C:\\Users\\pna105>lsnrctl stat

 LSNRCTL for 64-bit Windows: Version 11.         


        

Answer 1

In my Windows case the listener would not start, and 'lsnrctl start' would hang forever. The solution was to kill all processes of extproc. I suspect it had something funny to do with my vpn