With 802.11's growth, law enforcement may have new hurdles to overcome when investigating cybercrimes. Wireless networks' complicated architecture makes it harder to discover artifacts than conventional networks. Modern digital forensic approaches face issues when developing forensic methodologies. Data integrity, privacy, password cracking, and IP address access are major issues. Digital forensics requires finding evidence. As the number of connected devices expands, it's important to collect and study their digital traces. Most of these devices are connected to a router, so they can instantly connect to the internet and use unlimited bandwidth. During a forensic investigation, there are two key concerns with wireless devices: discovering and safeguarding digital evidence and evaluating seized goods. In our research, "live" and "postmortem" forensics of router devices are used in investigations. We create a Wi-Fi router forensic framework using portable devices. This portable gadget can be used for live forensics at crime scenes. Our investigation uses a fourth-generation Raspberry Pi and Kali Linux version 2022.1, which runs open-source applications. This research project is inexpensive, portable, easy to put up, effective, and satisfying. This research studies how to find forensic data and where it is housed. It also examines forensic data retrieval. We employ Cisco, TP-Link, and Huawei routers to demonstrate our findings in real-time.