X60 wifi broken. No support from TP-LINK
I have bought the TP Link Deco X60. As soon as I recieved the product I noticed issues with the wireless on the product. It was showing me a weak signal. What followed was a back and forth of endless calls between TP Link and the seller and one individual out of about 15 calls to TP Link support was able to help me to get a strong signal in the router post which it was noticed that even with a strong signal, on wireless I was getting 50mbps speed whereas my internet connection is 300 mbps. For context, I have a TP-Link AX53 and AX20 as well which give me the full 300 mbps speed. I also have another set of TP-LINK Deco X60 upstairs in my parents house which gives fill 300 mbps speed so I know it's an issue with this X60 pair that I bought on 14th November. I additionally did another troubleshooting which was to do a speed test on the Deco app which gives me 300 mbps speed and a hardwire from Deco to laptop which gives me 300 mbps. It's only wifi that is a problem. Hence it's the wifi of this pair of x60 that seems broken. Any technical way to fix this or do I need to get a replacement?