Merge pull request #2902 from SomberNight/network_timeout

send server.version before subscriptions

lib/network.py

@@ -317,6 +317,9 @@ class Network(util.DaemonThread):
         for i in bitcoin.FEE_TARGETS:
             self.queue_request('blockchain.estimatefee', [i])
         self.queue_request('blockchain.relayfee', [])
+        if self.interface.ping_required():
+            params = [ELECTRUM_VERSION, PROTOCOL_VERSION]
+            self.queue_request('server.version', params, self.interface)
         for h in self.subscribed_addresses:
             self.queue_request('blockchain.scripthash.subscribe', [h])