Network security is a vast topic that combines processes, devices, and technologies. Network security is the group of rules and configurations. This designed to protect the information and networks' integrity, accessibility, and confidentiality using software and hardware. The network nowadays has become complex, which is changing the threat environment. Similarly, smart homes are also becoming prone to security threats. Due to that, ensuring network security is very important. The vulnerabilities of the smart home network can exist in many areas, including users, location, data, and applications. Some smart devices in smart homes may lack system hardening and can have hardcoded passwords, or the passwords can be found without any encryption inside the device or the software. Security of the smart home network is a high priority of the connected devices so that hackers do not get access to sensitive and personal data. Otherwise, this may risk the entire network of the smart home. This research will provide a model to analyze various security concerns of the smart home network. For this research, a qualitative method such as a case study analysis will be done for conducting this research study. In addition, relevant information through the secondary data collection method will be collected. Investigation of various security threats related to smart home networks will be performed, and Blockchain Technology will be used technologies to mitigate the security issues and secure and protect the smart home network secured and protected. In this research, the novel, decentralized, and innovative approach to blockchain technology will be presented, which will be used to enhance the security architecture of the smart home network.