Can't connect to home wifi

Have you tried adding it in through your Routers manager? You can also try going to the WiFi setting and choosing to ignore the network.
Then turn off the Tablet, pull the battery and hold the power button for 30sec. Then turn the router off (unplug everything and reset), and modem (unplug everything and pull out the batteries and reset). Wait 5 min., then re-install the batteries into the modem and plug it in. Wait for it to completely boot up. Then plug the Router in and hook everything back up and power on, wait for it to completely boot up. Turn the tablet back on and pick your network and sign in with your password.

 

How did you set up your network? What do you do if you want to add networks? How ever you do this, use it to access your router manager to add you tablet.
Un-plug the router from it's power source and cable connection. Double check that it doesn't have a battery backup inside (they usually all do).
On your tablet you need to choose to ignore the network. Your Tablet Should have a way to access the battery(some how, some way). Pull the battery. Then hold down the power button for 30 sec.
Explain this "preset key" your talking about some more.

 

Sounds like you might need to call FIOS tech support. Then post what action you had to take.

 

Turn both the router and phone off. Turn on the router and phone after a minute or so. Then try going into the settings/Wireless & networks/WiFi-turn on by checking box/then go to WiFi settings/add WiFi network. It should ask you for your network password enter it in.
I don't know if you have tried this yet.
I have my router set to WPA2 and my cheap Optimus V has no problem connecting, my old Sony Vios Desktop on the other hand Doesn't. I had to set up a Guest network with WPA to allow it to connect.

 

I'm a little unclear on the "preset key". How did you set it up, can you disable it until after you get the tablet assigned an IP address by the router? It sounds like this "preset key is a big pain in the butt.

 

Duh! OK thanks for jogging my memory. Hmmm, have you tried connecting to a friends WiFI using WPA2 and a different router. This would confirm weather it's a problem with the Router or the tablet.

 

My router (Linksys -with cable modem) is set to WPA with TKIP. I haven't tried AES. When I set my tablet to Wi-Fi settings when the Wi-Fi is on I see my network and sometimes a neighbors network listed. When I select a network to which I am not connected with a padlock on it I get a box which has a Password input block in the middle and an option to show the Password as it is typed. At the top of this box the Security type is shown and the signal strength. At the bottom are two blocks to allow for selection of Connection or Cancel. You said you did not see a way to enter the pre-shared key (the name the manual for your router shows) which the tablet calls a password. If your tablet doesn't operate as described perhaps it is bad.

 

His problem is with the highest security WPA2, I'm pretty sure he can connect to WPA.
Maybe you could try to connect to WPA2. Then we would know if it's a problem that's model specific.

 

That's a good idea but my router isn't letting me access it right now. I was addressing the OP's comment that he couldn't find a place to input the PSK.

(Quote) The type of WPA2 encryption used by the router is WPA2 PSK, which stands for PreSet Key. The router looks for the same string from every connected device. The tablet knows the router is secured with WPA2 PSK, it sees the SSID, the signal strength can't be better, but I can't get a box to enter the PSK. The only way I can see to disable it is to use lesser encryption.

My input isn't affected by WPA or WPA2 formats since the tablet shows "WPA/WPA2 PSK" for the Security description.

 

So your saying you can't access WPA2 as well. If so, I see a pattern developing. If you figure it out post it.
I'm starting to think it's a manufactured problem with the software.
I think I'll google it to see if any other IdeaPad A1 user's are having the same problem.

EDIT: They have some really good suggestions here http://forums.lenovo.com/t5/IdeaPad...blet-will-not-connect-to-my-wi-fi/td-p/693053

 

I was able to change my router from WPA to WPA2 tonight. My A1 connected without and intervention on my part as soon as I turned WiFi on.

 

I'm glad to see something worked. Now you have the info so can help someone else with the same problem.

 

just a thought...... Is it possible that mac address filtering has been turned on? I use mac address filtering on all my wireless devices along with WPA. But, I have to feed the router the mac address of any new device that will be accessing it.

 

FWIW, I was having the same problem -- just replaced my older 10/100 Verizon-supplied router with the new 10/100/1G model, trying to get it configured for the same wireless connections, and my Lenovo 10" Android tablet was failing to connect with WPA2, reporting "Authentication problem" though it worked fine with WEP. Eventually realized that, like an idiot, I was entering the WEP password rather than the WPA/WPA2 key. Oops; I do know better... Hope my mistake saves someone else some time.