Hi Dheeraj,
1. Yes im able to connect DB, r3trans -d shows (0000) its working fine.
2. No i didnt change anything at SAP level.
3. Yes system Runs for a while for ex. 1 hr or 2 hrs or 3 hrs then dispatcher stops., when dispatcher stops at that time DB also wont work, i have checkd when dispatcher stops R3TRANS -d shows (0012) no connection. and error shows at that time as TNS Protocol adapter error(ORA12560)
then i will restart listener and ORACLE SERVICE SID services then start db and start SAP , it will run for a while and then again dispatcher stops.
this is the routine error in thus way
is there any problem with db ( or) Network DNS issue.
Thanks
Shafeeq