ERPNext Default Purchase Order Module not saving

Hi GUys,

Im new in ERPNext, we did the basic install of ERPNext instance in Oracle VM virtualbox.

When i try to create a P.O. it doesnt save the P.O, the save button just dims out and nothing happens.

Have anyone experienced anything like this? whats the solution?

Thanks.

Okay, so here is the case, we have an ERPNext server located in our office B location. And we are just connecting to it via internet.

It seems that our policy in our office A is only allowing port 8080, but blocks other ports that ERPNext is using. for now, we have allowed all ports for ERPNext access.

Please correct me if im wrong: Do we only need to allow ports 22, 80 and 3306 for ERPNext to function without errors/problems?

Thank you.

First try different browser. Chrome , Firefox , Micr Edge etc