I have a terrible problem with my home Wifi.
When I connect to my router via Wifi, I ALWAYS get wifi ON for a period of 10 seconds and Wifi OFF for a period of 5 seconds.
That's exactly what happens over and over.
To clarify the problem, I ping to the router with a Terminal app and I get this:
PING 1 < 20 ms
PING 2 < 20 ms
PING 10 < 20 ms
PING 11 > 4 SECONDS !!!
PING 12 > 3 SECONDS !!!
PING 13 > 2 SECONDS !!!
PING 14 > 1 SECOND
and then starts again the cycle.
So there is a period of 5 seconds with Wifi OFF each 15 seconds.
If I reset network settings, then it starts working properly, but when I switch the phone off and then on, it starts losing Wifi for 5 seconds periodically again.
Tested with other smartphones and Wifi works properly, so the router it's not the fault.
¿Perhaps it's a Samsung bug trying to "improve" Wifi stability?