I am stumped. InetAdress.isReachable simply does not work. By that I
mean, it always returns false for an external host.
I have tried searching the internet to see if anybody else is having
the same problem, I have found a few people have had the same problem,
but cannot really find an explanation why.
I have tried this on multiple devices with the same result.
boolean blnResult =
InetAddress.getByName("localhost").isReachable(20000);
The above line of code works every time. If I change the "localhost"
to an external host that I can verify "isReachable", the result is
always false.
blnResult =
InetAddress.getByName("www.google.com").isReachable(20000);
blnResult = InetAddress.getByName("4.2.2.2").isReachable(20000);
The above lines always return false, even though I can use a terminal
emulator on the same device and get a true result.
Can somebody more experienced with Android or perhaps a Google
engineer please give a plausible explanation for this.
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