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The routing table isn't exclusive to the router; you have one on your computer. On the night of the business trip, I logged out of the VPN and ran around the whole network, but the ping gateway worked. When I checked the route print, I saw an extra 0.0.0.0 router and just wouldn't leave. Knowing where to go, the scope, and who to assign it to—three columns—this kind of pot can be pinpointed at a glance....

The entry point for changing DNS on Tenda routers is in the tendawifi.com's internet settings, while older AC series models are hidden in the WAN port settings under network parameters. The first and backup boxes cannot be filled with the same address; I only found out when I was rejected from my save. WeChat can send a webpage but it won't open, and changes won't take effect—this article explains everything in one detail....

Can a retired telecom optical modem at home be plugged into mobile broadband and still used? I tried using the HS8145V5 my cousin had taken out and plugging it into our own mobile secondary line overnight. The PON light kept flashing for 14 hours and I couldn't register. To break it down, the two locks that the light modem cannot bypass are the standard and the authentication method. This article explains both locks and the method for matching the number....

The second-hand drive in my cousin's NAS that lasted 40,000 hours was really dead. He even restarted it three times with a clicking sound. I accompanied him to visit two data recovery companies, with opening prices ranging from 1500 to 3500, and we saw every pitfall of low-price traffic and testing fees. This article discusses what money to spend and what actions to avoid after a broken disc....

Group broadcasts are only sent to those who subscribe. Watching IPTV live streams at home doesn't take up broadband megapixels, switching channels takes a second or two, casting only on the same WiFi is accessible—it's all the work behind the scenes. I'll break down the three delivery methods—unicast, radio, and multicast—and show you what multicast looks like....

Both the Xiaomi Router 3 and mini use the old MT7620 platform, and the 100MB port as the main router is no longer sufficient. I pressed five steps to turn the one in the drawer into a Padavan, connected to my mom's home TV as a device-level bypass router to block ads, and stepped into every pitfall for you....

My wife saw news about the camera's illegal industry and turned to ask if my six heads were safe. I found the router port from the cloud account, then the camera's device, and after five steps, the riskiest spot was the 554 port on the router that the owner in the yard had opened via UPnP. Just follow this checklist and go through it once....

switches use MAC address tables to look up and forward, and packets that are unfamiliar are flooded to all ports. Two network cables connect the router and switch into a loop, with broadcast frames infinitely copied within the loop, filling the entire house with bandwidth in seconds. This article thoroughly explains the investigation process and principles behind the entire internet paralysis at my home in one go. ...

My cousin's Mercury router kept showing requests failing when binding MERCURY ID. The official customer service asked me to change the WAN port DNS, but no matter how many times I checked the WAN port settings, I couldn't find this box. This article notes the real entry point for changing DNS on Mercury, how to choose DNS, and three pitfalls where the fix doesn't take effect. The ugly saying that DNS doesn't speed up is also mentioned upfront....

At night, the internet suddenly disconnected while watching TV. The light modem was all green, and the WiFi was full. After checking for a long time, it turned out the main card for the integrated package was 17.3 yuan in call credit, and the broadband was suspended due to a convergence incident. Paying off outstanding fees is only the first step. Restarting the optical modem, waiting for the re-operation command to be issued, distinguishing between shutdown to keep accounts and undue fees and downtime—this article covers the entire process of resuming the machine....