Troubleshooting Network Issues

While working on my Home lab, I noticed the page trying to get to was not loading; after a while, it came with the DNS Server Not Responding Error. I tried to ping Google to confirm it was the internet and received no pings back. I checked other computers and tablets to see if there was any connection and found and found those systems had an internet connection. I checked with my raspberry pi as it also has a hardwire connection, as it shares the same path to the internet, and found that I could connect to the Pi but could not connect to the internet by using ping. Then suddenly my connection to the internet was restored. I checked the router and saw no error lights blinking; all connections were secured and connected. The next day, the same issue occurred, so I restarted my computer and the Raspberry Pi to see if that resolved the problem, and that did not. When I went to the router to see if something was abnormal, I found that the port was blinking orange. Depending on the router it could mean that it was receiving data, so I turned off my computer and the Raspberry Pi and found the port was still blinking, which could represent an error. So I switch the docks to see if the issue repeats itself, and so far, it has not. I conclude that there is an issue with that port, which could be defective. See below for my thought process with the steps of troubleshooting.

1. Narrow done the issue: Found the problem was the wired connection to my room

2. Establish a Theory of Probable Clause: Established theories that the port was malfunctioning, the cables could be wrong, or there was a loose connection.

3. Testing theories - Tried a different cable to see if there was an effect and found no change. Check the ports and status of the router to see if the issue lies with the router and notice the blinking orange light on the router's ports.

4. Establish a plan: Switch ports on the router.

5. Verify full System Functionality and Implement Preventive Measures: Switch ports and watched and found that I remained connected to the network, concluded that the port was bad

6. Document Finding: Here are notes on the incident to be posted on my blog.