Certified - CompTIA Network + Audio Course

Welcome to the CompTIA Network+ Certification Audio Course

Episode 184: Network Troubleshooting Methodology Recap and Exam Readiness

To wrap up the series, this episode reviews the full troubleshooting methodology—from identifying the problem to documenting the fix. We walk through common scenarios, showing how the steps apply in…

Episode 183: BYOD, Licensing Issues, and Troubleshooting Oddities

Not every issue fits into neat categories. In this episode, we address edge-case problems like Bring Your Own Device (BYOD) compatibility, expired licenses on security appliances, and odd client…

Episode 182: Optical, Hardware, and Performance Issues — Identifying and Resolving Problems

This episode revisits advanced troubleshooting at the hardware and optical layer. We cover transceiver problems, dirty fiber connectors, power mismatches, and switch backplane limitations. You'll…

Episode 181: DNS and NTP Failures — Troubleshooting Name and Time Resolution

DNS and NTP are often invisible—until they fail. This episode shows how to diagnose and fix issues with domain name resolution and time synchronization, both of which affect authentication,…

Episode 180: Asymmetric Routing, Multicast Flooding, and ACL Misconfigurations

Some network issues are subtle, involving advanced concepts like asymmetric routing, multicast flooding, and access control list (ACL) errors. This episode explains how asymmetric routing—where…

Episode 179: Collision Domains, Broadcast Storms, and Routing Loops

Poor network segmentation can lead to serious Layer 2 and Layer 3 problems. In this episode, we explain how excessive collision domains on legacy hubs or poorly configured switches can slow…

Episode 178: Routing Troubleshooting — Missing Routes, DHCP, and Address Conflicts

Routing issues can silently break connectivity—even if everything looks fine at Layer 2. In this episode, we diagnose common routing problems, including missing default routes, misconfigured static…

Episode 177: Network Foundations — VLAN, Interface, and Configuration Checks

Sometimes network issues stem from the basics: incorrect VLAN assignment, disabled interfaces, or outdated configurations. This episode walks through foundational network checks that resolve a…

Episode 176: Wireless Configuration Problems — SSID, Encryption, and Client Issues

Even if the signal is strong, configuration mistakes can block connectivity. This episode addresses common wireless configuration errors such as mismatched SSIDs, incorrect security settings, or…

Episode 175: Wireless Issues — Antenna Placement, Channels, and Signal Loss

Signal problems are among the most common wireless complaints—and many stem from poor antenna planning. This episode examines how antenna placement, orientation, and environment affect signal…

Episode 174: Wireless Limitations — Throughput, Signal Strength, and Power

Wireless technology is incredibly convenient—but also limited by physical and environmental factors. In this episode, we explore the inherent constraints of wireless communication, such as reduced…

Episode 173: Interface, Routing, and Platform-Specific Diagnostics

Every device platform—whether Cisco, Juniper, or another—has its own diagnostic approach. In this episode, we explore common troubleshooting techniques across routers and switches, focusing on…

Episode 172: Infrastructure Tools — TFTP, Terminal Emulators, and Basic Commands

Some of the most essential network management tools are also the most overlooked. This episode covers infrastructure tools such as TFTP servers for file transfers, terminal emulators like PuTTY and…

Episode 171: Network Discovery and Performance Monitoring

Network visibility starts with knowing what’s on your network. In this episode, we explain network discovery techniques using tools like ping sweeps, SNMP queries, and Nmap scans to identify devices,…

Episode 170: Packet Inspection and Traffic Analysis Tools

To truly understand what’s happening on the network, you need to inspect the packets themselves. This episode introduces tools like Wireshark, tcpdump, and protocol analyzers that allow you to…

Episode 169: Wireless Troubleshooting — Tools and Bandwidth Analysis

Wireless networks introduce a layer of complexity that often demands specialized tools for visibility. In this episode, we cover wireless troubleshooting utilities including site survey tools,…

Episode 168: Advanced Tools for Fiber Optics and Signal Testing

Fiber requires a different class of diagnostic tools due to its precision and sensitivity. In this episode, we cover devices like OTDRs (Optical Time Domain Reflectometers), power meters, and visual…

Episode 167: Cable Testing Tools — Crimpers, Punchdowns, and Locators

Troubleshooting starts with the right tools. In this episode, we walk through the essential cable testing and installation tools you’ll use on the job. These include crimpers for RJ-45 connectors,…

Episode 166: Link Layer Diagnostics — Duplexing, Transceivers, and LEDs

Link-level problems are easy to overlook but frequently cause intermittent issues. This episode explores duplex mismatches—where one device is set to full duplex and the other to half—leading to…