[Android Central Question]

tablet shows no bars on my optimum wi-fi. i wiped out all memory and started over still cannot get a connection but my computer and phone works.

[Rukbat]

You wiped out all memory, but did you tell the tablet to forget the Optimum connection? That's the only part of memory that matters in a wifi connection. Also, if the tablet is old enough, and your router is on 5GHz, the tablet may not be able to use the signal - make sure the router is using 2.4GHz.

Also, try with other wifi connections - a friend's, a store's free wifi, something that's known to be working. If it won't connect to anything, it's the tablet (and whether it pays to repair it depends on what they'll charge you for a motherboard versus how much a new tablet of the same model costs). If it connects to other wifi signals, it's something in the way your router is set up.