If it is just tonight, then may not be worth worrying about. Cable internet is a mix of 10% technology and 90% witchcraft, and peculiar short term issues are not that unusual, much as we don't want them
If the problem persists tomorrow, and after you've rebooted your hub, then it's worth taking more of a look. If that is the case, do you know how to connect to your hub, and then how to bring up the status page?
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