A Wireless ad-hoc Network is one of the types of decentralized network. Due to its free to roam attribute they may form frequent break in the network topology which slowdowns the performance for the applications. Therefore, it is important to expect the link of the nodes that are under critical state that leads to link break. By introducing Newton’s divided difference method, link in the critical state node can be analyze, identified and desire action has been taken. Genetic Algorithm (GA) helps in execution of all these problems. this algorithm forecast the availability time in the link that means a short time before the link breaks; during this valuable time route-repair function repairs the route locally or if not it send the information to source nodes in aid to find a new route well in advance. The performance is carrying out using ns-2.35 network simulator.