All Episodes
Displaying 161 - 180 of 185 in total
Episode 161: Welcome to Domain 5 — Network Troubleshooting
In this final domain, we turn our focus to troubleshooting—a skill that ties together everything you’ve learned so far. This episode introduces Domain 5 and outlines t...
Episode 162: Troubleshooting Methodology — Identifying Problems and Probable Causes
The foundation of effective troubleshooting is a structured approach. In this episode, we introduce the CompTIA troubleshooting methodology, focusing on the first few ...
Episode 163: Troubleshooting Methodology — Implementing Solutions and Documentation
Once you’ve confirmed the cause of a network issue, it's time to solve it. This episode covers the final stages of the troubleshooting methodology: establishing a plan...
Episode 164: Cable Performance Specifications and Specialized Applications
Cable problems can often look like application issues, but they require a different kind of troubleshooting. In this episode, we review cable specifications like lengt...
Episode 165: Common Cable Faults, Errors, and Hardware Issues
Even a well-designed network can experience hardware or cabling faults over time. This episode breaks down common problems such as broken connectors, bent pins, cable ...
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 t...
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 c...
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 Reflectome...
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 inc...
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 an...
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...
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, ter...
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 ...
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 c...
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 e...
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, inco...
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 netw...
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 defaul...
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 config...
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 ho...