Century Link connection problems?

I need help. I am trying to play Splatoon 2 for the Nintendo Switch, but I am getting kicked off the rounds including the Salmon Run. We also have CenturyLink, and Nintendo said you need to have Mbps of 1000, but Century Link said they cannot give us 1000 Mbps. Our internet can be slow, and we have mutiple... show more I need help. I am trying to play Splatoon 2 for the Nintendo Switch, but I am getting kicked off the rounds including the Salmon Run. We also have CenturyLink, and Nintendo said you need to have Mbps of 1000, but Century Link said they cannot give us 1000 Mbps. Our internet can be slow, and we have mutiple devices and other networks who should not be sharing our network but our because I can see them and it is messing things up. They also said we need to get our modem/router fixed. How do I solve these problems and how do I get the other networks off?
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