I am a subscriber to my local cable company's broadband service for the past couple of months and currently own a TP-Link Cable Modem instead of the modem provided by the company. The model number for the modem is TC-W7960. All of my devices worked including my tablet, laptop, streaming devices, and my PS4, but as for my desktop, my Wifi speeds were either slowed down(I have a 15GBps connection, clocked at somewhere at around 6MBps, and dropping) or I got disconnected altogether. As I was not able to access the Internet, all of my other devices still work. That is because my modem is located in the family room downstairs on the first floor, and my computer is located in the back of the house in the second floor. When I get dropped out, I had to reboot the router for a few minutes and my computer is connected to the Internet, but I quickly lost connection within five minutes. Another remedy for this is to reboot the system and I was able to get back on the Internet, but for just a few minutes with maximum speed before throttling to around 3.5MBps, then disconnected altogether.
A few days ago, when I moved my desktop to my bedroom in the second floor of the house, my Internet speed were back to normal and I do not get dropouts. It is because my bedroom location is above the living room where the modem is placed at. I don't have any connection problems with other devices in my previous room where my computer was located.
Is there a solution on why my Wifi speed is slower compared to other devices when the desktop is located in a certain room?