Slower internet on 1 desktop and 1 laptop.?

So here's the deal. I upgraded to spectrum 400mb internet. My desktop has a Linksys AC1200, laptop has a AC600 and my other laptop is just regular built in wifi card. Im getting about 188 mb/s download across the board. The tech that just came out here said everything is good and clear, he even got a little... show more So here's the deal. I upgraded to spectrum 400mb internet. My desktop has a Linksys AC1200, laptop has a AC600 and my other laptop is just regular built in wifi card. Im getting about 188 mb/s download across the board. The tech that just came out here said everything is good and clear, he even got a little over the 400 on his device. What is going on? Should I just go buy a router and see if that helps?
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