Wireless sensor Network (WSNs) get notable merits over traditional communication in now day’s applications like weather analysis, home security and also in medical care. But it has rugged and more complexity environment in reliability of WSN and also it’s a great challenge in WSN communication. To carry out reliable wireless communication in WSNs we need a necessity of reliable routing protocols and to know reliability performance of different routing protocols we have means to evaluate. In our process we are discuss the reliability of sensor nodes with two different types, they are energy harvesting sensor nodes and battery powered sensor nodes. After that we present wireless link reliability protocol such as Low Energy Adaptive Clustering Hierarchy (LEACH) for each type of sensor nodes. To analysis the wireless link reliability we need resultant of different parameters, like cluster formation, dead nodes and number of packets are needed for this process. . A dynamic routing approach is then proposed to achieve the most reliable end-to-end path in WSNs. The link stability using LEACH protocol is achieved through the WSN nodes.