Error applying the patch 14279929:R12.AP.B patch is hanging

Hi,
Error applying the patch 14279929:R12.AP.B patch is hanging
there is no error in the adwordk*.log

Many connection errors in the database alert.log

Fatal NI connect error 12170.

VERSION INFORMATION:
TNS for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production
TCP/IP NT Protocol Adapter for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production
Oracle Bequeath NT Protocol Adapter for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production
Time: 13-AUG-2012 21:11:32
Tracing not turned on.
Tns error struct:
   ns main err code: 12535

TNS-12535: TNS:operation timed out
   ns secondary err code: 12606
   nt main err code: 0
   nt secondary err code: 0
   nt OS err code: 0