PP submitted for final processing status changed to application received and no visa even after 2 weeks

My wife attended interview at hyd consulate for H4 visa on Aug 31,2017, it was put under administative processing, on sep 27 received email to submit passport for final processing, dropped passport on oct 5, the CEAC state changed to Application received from administrative processing, and then no update after that, its over two weeks now.

She has masters in animal sciences, and probably thats why they put in administrative processing, Previously both times for H4 visa, her visa was issued within a week of submitting passport. Also after submitting passport her status used to remain admin processing but this time it changed to application received after submitting passport

any idea why its taking so long this time

When is the visa issued? I have a similar situation.