hi all,
Machine: Windows 8.1 64 bit, Form version: 12.2.1.2.0 Database: Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
one of our client's developer complaining he is facing this problem on daily basis when run Form thru builder it opened browser (IE) and stuck on Waiting for localhost, some times it can run in 2nd or 3rd attempt but for last 2 days it is much headache now, after 5 - 6 attempts it is not running and developer frustrated now. all WLS services started manually, first time it runs and now it can't after 4 attempts.
please help, what can be the problem? how it can be solved?

regards
EDIT: not using a VM for this purpose.