NtpNetworkException when awaiting RequestTimeAsync() about yort.ntp HOT 6 CLOSED

Same behavior (same exception type/message in ErrorOccurred event) when using the non-async calls

var client = new NtpClient(KnownNtpServers.NorthAmericaOrg);

client.TimeReceived += Client_TimeReceived;
client.ErrorOccurred += Client_ErrorOccurred;
client.BeginRequestTime();

from yort.ntp.

Sorry for the delayed reply, I have been away and was not in a position to do development or check GitHub.

I'm also sorry this isn't working for you. It appears to just be broken. I swear I tested it on Android before publishing, but it doesn't work now and it doesn't look like it ever did so I don't know what happened.

The basic problem is that Xamarin Android purports to support all the same socket API's as the desktop framework/iOS etc. but at least one of them throws a NotImplementedException and doesn't really work. Specifically calling System.Net.Sockets.Socket.Connect and passing a DnsEndPoint instance throws an exception from the EndPoint base class used by DnsEndPoint. I haven't found any way around this. I'm not sure what the point of DnsEndPoint is in Xamarin Android if you can't pass it to a socket.

However, I have found the same code works with an IpEndPoint, so it may be possible to do a manual DNS resolution of the server name to IP, then pass the IP to the socket. However I haven't had time yet to confirm this, and because it's (probably) (marginally) less efficient I'd prefer to only do it on Android, so it will need either a new implementation or some conditional compilation logic in the shared code file.

I'll let you know if/when I've managed to find a solution.

Thanks for reporting the problem.

from yort.ntp.

Thank you for your response.

Let me know if I can help test a potential solution.

from yort.ntp.

Hi,

I've published a beta package (https://www.nuget.org/packages/Yort.Ntp.Portable/1.0.10-beta) to Nuget . Make sure you turn on the 'pre-release' option in VS to see the new version.

I've tested it on a Samsung Galaxy S5 on Android 6.0.1 and it seems to work.

Please try that package and let me know if it works for you.

Thanks.

from yort.ntp.

The new version works. Thanks for the quick fix!

from yort.ntp.

No problem. Thanks for reporting it.

from yort.ntp.