No Internet Available, sometimes One week ago, my phone suddenly grew a very annoying problem with the Wi-Fi. Pretty much what happens is that my Samsung phone is working like normal for ten seconds. Then, the Wi-Fi disconnects and says "No internet available". If I manually reconnect it by tapping the Wi-Fi in settings and press connect, it connects back to the Wi-Fi. Then the cycle repeats ten seconds later.

Also, the cycle is not constant. Sometimes I have internet access for a few minutes, sometimes only for three seconds, but on mostly ten seconds.

Another thing, it's not my phone. My phone can connect perfectly well to all other Wi-Fis. It also not my router, for all other devices connect perfectly well to it. It has something to do with the specific connection between this phone and my linksys internet.

On a side note, I have a roomba connected via schedule to this phone. It hasn't automatically vaccummed since my internet-phone connection acted it.

EDIT 1: I have tried using the Wi-Fi fixer app and it did not work as desired. When the app is running, the same cycle occurs as described above. With the exception that every time the Wi-Fi disconnects, Wi-Fi fixer automatically reconnects. 

This is a great step, as I get a somewhat more reliable internet connection. However, this means that every 20 seconds the "connected to Wi-Fi" pop up appears. It also means my internet goes in and out constantly. I also imagine the constant reconnecting to the internet causes a smaller battery life.
Wifi connects for sometimes then disconnects and then never connects

This question seems to be similar to your situation. OP reported that the problem was solved by using this app: https://play.google.com/store/apps/details?id=org.wahtod.wififixer&amp;hl=en

EDIT:
Taken from Wifi keeps disconnecting and reconnecting frequently

1.Dial *#0011#

2.Then press the menu button and select wifi

3.You'll notice an ON button

4.Turn it Off

5.Restart phone

p.s.: When you restart your phone, recheck if it's still OFF, if not repeat til it works.

Alternatively, you may want to try the possible solutions listed here: https://www.connectify.me/blog/fix-internet/how-to-fix-android-wifi-disconnect/