PC no Longer Able to Connect After Move, All Other Devices are Able to Connect and PC can Connect to Other Wi-Fi and Hotspots Without Issue

I recently moved addresses and since then have been encountering multiple issues relating to my internet and subscription with Xfinity that were not occurring at my previous address. The most frustrating of which has been my PC and it being unable to connect to the internet. Everything was working perfectly fine before the move, the Gateway device has not changed, and my PC is working perfectly without any issues. However, every time I attempt to connect to my home Wi-Fi now, I am met with the message "No Internet, Secured". 

I have attempted every possible solution I can find online relating to both my PC and the gateway without any luck. All the other devices I own are able to connect without issue, even ones placed directly next to my PC. Additionally, my PC has no issue connecting to other local Wi-Fi such as nearby "xfinitywifi" connections and even my mobile hotspot which is connected to the gateway. 

At this point I feel like I have tried every idea and suggestion online that I can find, my PC is completely up-to-date, I have tried all the command prompts, I don't have a VPN or proxy, all the properties are correct, I have moved both the PC and the gateway to multiple locations around my home, I have reset my gateway completely, everything has not worked.

The only time I have been able to receive any sort of stable connection as been by moving my PC into the living room and using an Ethernet cable, but that is not a long-term or sustainable solution for me and I have never had to previously rely on an Ethernet cable to connect to Xfinity Wi-Fi. My office where the PC is set up does not have a coaxial plug anywhere nearby, so I am unable to use an Ethernet cable to permanently solve this problem. 

I feel like I am losing my mind a bit with this issue as I have been trying different solutions for over a week now but with zero luck, seriously hoping someone might be able to help out especially if they have encountered something like this before. I believe this is a problem more with Xfinity and the connection my PC is receiving than my PC and its hardware and software based on everything I have tried and found online, but at the end of the day I am just looking for any way to finally resolve this problem.