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Tech Tutorials | App Reviews & Android Fixes | Fintech Shield Blog
Welcome to the Fintech Shield Blog | Your go-to hub for insightful Tech Tutorials, Unbiased App Reviews, Android Solutions, Windows Solutions and Digital innovation tips. Whether you're a curious user or a seasoned tech pro, we’ve got something valuable for you. Stay ahead in the digital era with our expert-driven guides and updates.
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What Is a Dynamic IP Address? Everything You Need to Know
Wondering why your IP keeps changing? This beginner’s guide explains what dynamic IP addresses are, how they work, and why most ISPs use them.
Kalyan Bhattacharjee
Jul 104 min read


How to Reset Network Settings in Windows | CMD & GUI Steps
Resetting your network settings can fix most internet problems on Windows. This step-by-step guide shows how to do it using CMD and the built-in GUI, making your connection smooth again in 2025.
Kalyan Bhattacharjee
Jun 232 min read


Bus Topology in Networking: Simple Yet Foundational
Learn what Bus Topology is, how it works, its pros & cons, and where it's still used today in this beginner-friendly networking guide.
Kalyan Bhattacharjee
Apr 163 min read


Star Topology Diagram: Structure, Functionality & Benefits
Star topology is a network setup where devices connect to a central hub or switch, ensuring easy management and high reliability.
Kalyan Bhattacharjee
Apr 23 min read


What is a Subnet Mask? The Key to Efficient Networking
A subnet mask is a crucial component in IP networking that helps divide large networks into smaller, more manageable sub-networks or subnets. It works by identifying which portion of an IP address refers to the network and which part refers to the host. By using subnet masks, organizations can improve network performance, enhance security, and efficiently allocate IP addresses.
Kalyan Bhattacharjee
Aug 22, 20245 min read


Hybrid Topology | Network Solution for Modern Businesses
Hybrid topology blends star, bus & ring networks offering flexibility, scalability & reliability for modern business needs.
Kalyan Bhattacharjee
Apr 7, 20244 min read


Windows Internet Issues & How to Fix Them: Internet Troubleshooting
Struggling with internet issues on your Windows PC? From sudden disconnections to slow speeds, these problems can be frustrating. In this blog, we uncover the most common causes of Windows internet issues and provide step-by-step troubleshooting tips to help you restore a stable and fast connection in no time.
Kalyan Bhattacharjee
Feb 3, 20243 min read


Firefox Browser: Fast, Furious, and Quantum
Firefox has evolved into one of the fastest and most privacy-focused browsers on the web, thanks to its powerful Quantum engine. In this blog, we explore how Firefox delivers blazing performance, minimal resource usage, and advanced privacy features that challenge mainstream rivals like Chrome. Discover why Firefox remains the go-to browser for power users, developers, and anyone who values speed and security in 2025.
Kalyan Bhattacharjee
Jul 5, 20233 min read


NAT Explained: Simplifying Network Address Translation
Network Address Translation (NAT) is the silent workhorse of modern networking, enabling private devices to communicate with the wider internet securely and efficiently. From conserving IPv4 addresses to enhancing security, NAT plays a vital role in keeping networks smooth, scalable, and connected.
Kalyan Bhattacharjee
Jun 23, 20233 min read


DHCP Server | Simplifying Network Management
A DHCP (Dynamic Host Configuration Protocol) server is a vital component in modern networking, designed to automatically assign IP addresses and network configurations to devices on a network. This simplifies network management, reduces manual errors, and ensures seamless connectivity. In this blog, we explore how DHCP works, why it’s essential, and how it streamlines both small-scale and enterprise-level network setups.
Kalyan Bhattacharjee
Jun 11, 20233 min read


IPv4 vs IPv6: Key Differences Explained | Evolution of Internet Protocol
IPv4 and IPv6 are the backbone of internet communication, but they differ in address formats, scalability, and efficiency. This blog explores how IPv6 improves upon IPv4, ensuring faster connectivity, enhanced security, and support for the ever-growing number of devices in the digital age.
Kalyan Bhattacharjee
Jun 4, 20233 min read


Evolution of Wi-Fi | It's Latest Advancements and Innovations
Wi-Fi has come a long way since its inception, transforming from basic wireless connectivity to a powerful technology driving smart homes, offices, and cities. In this blog, we trace the evolution of Wi-Fi, explore its latest advancements like Wi-Fi 6 and Wi-Fi 7, and uncover how these innovations are shaping the future of wireless communication.
Kalyan Bhattacharjee
May 31, 20233 min read


IP Address: The Backbone of Internet Communication
An IP address is the cornerstone of internet communication, serving as a unique identifier for every device connected to a network. Whether it's browsing websites, sending emails, or streaming content, IP addresses ensure that data finds its correct destination. In this blog, we break down what IP addresses are, how they work, and why they are vital for seamless online connectivity.
Kalyan Bhattacharjee
May 23, 20234 min read


Network Topology in Computer Networks | Complete Guide (2026)
Network topology forms the foundation of modern connectivity, defining how devices and nodes are arranged and interact within a network. From star and mesh to bus and ring configurations, each topology offers unique advantages in terms of speed, reliability, and scalability. In this blog, we break down the most common network topologies and explain how they shape the efficiency and performance of today’s digital infrastructure.
Kalyan Bhattacharjee
May 15, 20234 min read


NAS Servers | Efficient Data Storage and Management
NAS (Network Attached Storage) servers offer a smart and efficient solution for centralized data storage, sharing, and backup. Ideal for homes and businesses alike, NAS devices simplify file access across multiple devices while ensuring security, scalability, and easy management - making them a must-have for today’s digital workflows.
Kalyan Bhattacharjee
Apr 23, 20233 min read


Internet vs Intranet: Key Differences Explained Simply (2025 Guide)
Ever wondered what makes the Internet and Intranet different? While the Internet connects the entire world, an Intranet is a private network used within organizations. This blog breaks down the key differences between the two, their unique purposes, benefits, and real-world examples—making it easy for anyone to understand how each plays a vital role in digital communication and connectivity.
Kalyan Bhattacharjee
Apr 7, 20234 min read
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