You are try to connect to disparate addresses.
Manually set your tablet to 192.168.0.2 with a subnet of 255.255.255.0 and see if that works.
If Norton includes it's Security suite, disable that too.
The only thing that puzzles me, is why you have two such different addresses. If the tablet is a business machine, that address may be set-up for company network use. If that is the case, create a new user profile and then use the "192" address for the new user. Log in as that user and try pinging the opposite machines address.