High ping to whole internet

We've been experiencing high latency in games and get 400+ ms pings even to google.com, 1.1.1.1, etc. Modem upstream and downstream power levels are good, and so is S/N ratio. Modem logs are clean. Ping to my modem is 1ms or less so it's not my network. The connection is hard wired.

What could be going on?

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