Unable to connect to web. I'm connected to my wireless with a strong signal

Take your tablet to a HOTSPOT with free WiFi and try to access Internet there. If can't, it's because inbuilt wireless adaptar has some problem.

are you seeing several wireless signals from others in neighborhod that is strong overlapping signals
is your phone near it
wireless keyboards ,wireless mice, ipod , ipad, home phones,wireless remotes, wireless speakers
look for other sources of interference too
does it always happen at a exact time or action.
raise the router up some to blanket the area only a few inches might be necessary.
does it do the same dying everywhere in house or on road
you can set a new default channel in your wireless thats less used in your spectrum its kinda easy but several steps an logins

Solution 1.Check wireless connection.
The first step of diagnosis have to any other device connected to the same network, ensure the wireless connection is working fine, or verify the settings of your wireless router to correct it.
2.Check your Keep Wi-Fi on during sleep Settings.
Owing to Wi-Fi sleep policy your Wi-Fi connection may be going to get disconnected every now and then.
Tweak this policy to keep your Wi-Fi connection awake.
[Settings] >>[Wi-Fi]>>[Advanced]>> Check [Always] to keep the Wi-Fi on during sleep.
Save changes and exit all the screens. Your Wi-Fi will never get disconnected again due to this policy.

3.Check signal strength of wireless connection.
The performance of a wireless network connection depends in part on signal strength.
You have to connect the Wireless network where the signal strength is strong.
Check Wireless network signal strength icons in notification bar.

4.Try to turn off/on Wi-Fi on the device.
First to turn off Wi-Fi, [Settings]>>[Wi-Fi] >>[turn Wi-Fi to off].
And then to turn on Wi-Fi, [Settings]>>[Wi-Fi]>>[turn Wi-Fi to on].

5.Try to forget network on the device.
Forgetting wireless networks allow your tablet/phone to reset some settings.
[Settings]>>[Wi-Fi]>>Press & hold your[Net Work Name(SSID)]for 2 seconds.
>>Select[Forget Network]>>Re-Connect your wireless networks if it's disconnected.

6.Try to reboot your device.
7.Make sure your firmware is up-to-date.
>>Select[Settings]>>[About tablet]>>[System Firmware Update]>>[Check Update].

8.Try to reset your device.
Note: once RESET was performed, all data, apps, settings and personal information will be deleted after initialization.
Third-party programs might be the major probability of Tablet/Phone instable, suggested to have a full reset for the device if the situation persists.
[Settings]>>[Backup&reset]>>[Factory data reset]

9.Try to other wireless connections.
If steps above were not able to solve internet connection problem still, please try other wireless connections if available, otherwise contact your networking provider to technical support.

Is your router sending out SSID broadcast messages so it can locate the iPad? Some people disable this feature, and the router can't locate the iPad or vice a versa. I don't think that is the problem though, you may have to much interference with walls and such and are not getting a strong enough signal. Check to see if your router is sending a strong signal on your iPad. If not, that could be it. If not, I am not really sure why this is happening. It really seem like a signal problem to me.

Just a few questions.
is your computer connected to the internet with a wireless connection, or with a cable? Is the internet connection you see on the kindle, the name of your wireless router? Did you setup the wireless connection on your kindle, using your connection name (the name you gave in on the wireless router you own) and password.
If you answered one or more of these questions with a no, first solve or change that. When you don't have the answer, because you don't know, you have to asume it is a no.
please tell us you did setup the wireless connection correct, so I can look to other possibilities.

Once you identify your wireless network (SSID) you must put in a "password" or network key.

I dont know about 20.1 however if is 10.1 go to settings>wireless& networks>wifi>turn wifi on>wifi settings and sure you should find the open wifi with strong signal.If you dont have the security code or access code to the available wifi then there is no way.

Try "forget network" and reconnecting.

Had same problem - said signal weak although strong on other devices, and hung on authenticating.
Cordless phone on base unit was beside wireless router. Moved unit and turned off phone. Problem disappeared, and signal showed strong.