Polling Tentacle failing

For some reason our tentacles are unable to establish a connection to our octopus server. This has been working fine till today. Here is the error that started showing up today.

2017-02-23 15:20:51.7378 8 INFO https://192.168.3.29:10943/ 8 Opening a new connection
2017-02-23 15:21:12.7667 8 INFO https://192.168.3.29:10943/ 8 Unexpected exception executing transaction.
System.AggregateException: One or more errors occurred. —> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond [::ffff:192.168.3.29]:10943
at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
at System.Net.Sockets.TcpClient.EndConnect(IAsyncResult asyncResult)
at System.Threading.Tasks.TaskFactory1.FromAsyncCoreLogic(IAsyncResult iar, Func2 endFunction, Action1 endAction, Task1 promise, Boolean requiresSynchronization)
— End of inner exception stack trace —
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait(TimeSpan timeout)
at Halibut.Transport.TcpClientExtensions.ConnectWithTimeout(TcpClient client, String host, Int32 port, TimeSpan timeout)
at Halibut.Transport.SecureClient.CreateConnectedTcpClient(ServiceEndPoint endPoint)
at Halibut.Transport.SecureClient.EstablishNewConnection()
at Halibut.Transport.SecureClient.AcquireConnection()
at Halibut.Transport.SecureClient.ExecuteTransaction(Action1 protocolHandler) ---> (Inner Exception #0) System.Net.Sockets.SocketException (0x80004005): A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond [::ffff:192.168.3.29]:10943 at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult) at System.Net.Sockets.TcpClient.EndConnect(IAsyncResult asyncResult) at System.Threading.Tasks.TaskFactory1.FromAsyncCoreLogic(IAsyncResult iar, Func2 endFunction, Action1 endAction, Task`1 promise, Boolean requiresSynchronization)<—

Problem resolved… Restarted the Octopus server.