Can not connect to internet

Delete and reinstall app, restart tablet, Do you have any vpn installed, what about firewall? turn all that off and see if that fix the problem? It may be that router have firewall and is limiting you.

If that doesn't help, put tablet to factory settings, if you are not sure about router reset that to, as it may be collaborate joke (it wouldn't be the first time).

They do get changed sometimes, you have have to get into the router or call the manufacturer of the product you are trying to log into, to reconfigure it.

pay your bill

I don't know what you are being told, but getting rude with us will not get you the help you wish for. If everything were working as YOU state, then there should not be a problem in the first place. However, there apparently IS a problem, and assuming it is not "operator error" (meaning YOU), then we will make suggestions that you can check on and try to get past this problem. It IS possible that the tablet itself is defective and won't connect whatever you try. But since it SEEMS to be making the effort, I would sort of lean in another direction. While it may seem that the password is the problem, occasionally, it is the router, or better stated, the router configuration, that is to blame. Does your router (the one you are trying to connect to) use MAC filtering? If so, the MAC address of the tablet would need to be entered into the table in the router before the router will accept the connection form the tablet. Without that, it would appear to simply be an incorrect password entry as you describe. If that is not the case, then be sure you are attempting to connect using the proper form of encryption on the tablet. Many older units use the old WEP encryption, which most routers do not acknowledge any longer. Ensure you are using WPA or WPA2, whichever the router is set up for.

Try this first....on the tablet go to settings and wifi.let it scan for your known router.once found do not try to connect but look for the arrow on right to try and set dchp etc.you should see a message somewhere on the page " Forget this network" click on it , rescan wifi again.this time your router will ask for the password.re input before timeout and it should be good to go.

Most tablets connect to the internet through WIFI. Only a few can use SIM card to connect through 3G or 4G data connection. For WIFI connection, you must have a WIFI router at home. You will normally password-protect the WIFI rounter. To connect the tablet to the internet through the WIFI-router that is in operation, you will configure its WIFI settings to match the router's password. This will be done by going to tablet's Setting, turn on WIFI, click on your router in the list of detected routers, enter the password when prompted. Ensure that Connected is shown against your router. You can then browse the internet.

Try resetting your wireless router that you are using to connect to the internet. (unplug the power for 5 minutes).
Also tell your tablet to disconnect from the internet and then Reconnect a few seconds later.

I assume you ant to connect your tablet to the internet.To do so, yu need a hotspot, or a router with internet access. That could be in a public place (starbucks) or at home. But when you want to connect at home, you have to create your own hotspot to the net. Try to contact a provider, to find out how you can connect to the net. Cable DSL, or even with 3G or 4G.

When creating a connection to internet, you need a point (read : router) which facilitates this. If you don't have a router in your neighbourhood, you can't connect to the internet. Even if there is one near you, you must be able to see it, by checking at your tablet for wireless connections. However, some routers are set to accept only connections, when a user ( your tablet) can provide this password everytime it tries to connect to the internet.

Schematic of internetconnection :

Tablet --- WiFi Router --- Modem --- Internet(provider).