Alan Turing fathered the machines we now lovingly call computers, however it was Nicola Tesla that birthed the idea of a world-wide wireless system.
Well thats false. They are only notes, not extra details.
That means the device is programmed to mark the word as grammatically incorrect, if you double tap the word there should be a correct suggestion of the word instead. This may not always be the right one tho, ask someone experienced if you’re unsure.
If the pings are successful you are either on the same subnet and everything is configured correctly or ICMP echo is enabled on the router which it should be by default internally. Externally, ICMP can/should be disabled to avoid DOS attacks.