tengo la version 6.5.1000.13 de NT es posible que eso sea el fallo?
en el archivo NTconfig, hay 2 versiones (que he puesto en negrillas, hay que cambiarla por la version que uno tiene?), aqui se lo pego todo el codigo de este archivo ,para ser mas puntual.
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<!--
	<Messages>
		<Message xmlns:xsd="
http://www.w3.org/2001/XMLSchema" xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance">
			<Id>2466594D-F2E8-4cd4-9ABB-8F4B269EE7BE</Id>
			<Text>There is a newer version available. To download V6.5.1000.4 please click on the link below.</Text>
			<Url>
www.ninjatrader.com/webnew/download_download.htm</Url>
			<Version>
6.5.1000.4</Version>
		</Message>
	</Messages>
	<Messages>
		<Message xmlns:xsd="
http://www.w3.org/2001/XMLSchema" xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance">
			<Id>98A2E912-CC1A-4ab7-A9D3-CDB482ABF14E</Id>
			<Text>Thursday June 7th is contract rollover for several futures contracts. Please click on the following link for instructions on how to rollover a futures contract</Text>
			<Url>
www.ninjatrader-support.com/HelpGuideV6 ... .html</Url>
		</Message>
	</Messages>
	<MessagesV7>
		<ArrayOfMessage xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="
http://www.w3.org/2001/XMLSchema">
			<Message>
				<ActiveFrom>2000-01-01T00:00:00.0000000+00:00</ActiveFrom>
				<ActiveTo>2099-12-01T00:00:00.0000000+00:00</ActiveTo>
				<Id>1FEBF9AD-2DFE-4D3F-8A14-B14E881BBA63</Id>
				<License>_.*</License>						
				<Provider>^x.*</Provider>					
				<Text>111</Text>							
				<Url>www.111.com</Url>						
				<Version>7\.0\..*</Version>					
			</Message>
			<Message>
				<ActiveFrom>2000-01-01T00:00:00.0000000+00:00</ActiveFrom>
				<ActiveTo>2099-12-01T00:00:00.0000000+00:00</ActiveTo>
				<Id>2FEBF9AD-2DFE-4D3F-8A14-B14E881BBA63</Id>
				<License></License>
				<Provider></Provider>
				<Text></Text>
				<Url>www.222.com</Url>
				<Version></Version>
			</Message>
		</ArrayOfMessage>
	</MessagesV7>
-->
<NinjaTrader>
	<Messages>
		<Message xmlns:xsd="
http://www.w3.org/2001/XMLSchema" xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance">
			<Id>DD3B5EC2-3ECA-46bb-B821-BBBD0837D32D</Id>
			<Text>There is a newer version available. To download V6.5.1000.10 please click on the link below.</Text>
			<Url>
www.ninjatrader.com/webnew/download_download.htm</Url>
			<Version>
6.5.1000.10</Version>
		</Message>
	</Messages>
	<TrackedServers>
		<TrackedServers xmlns:xsd="
http://www.w3.org/2001/XMLSchema" xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance">
			<Servers>
				<string>10.0.4.112/10.0.4.114</string>						<!-- Patsystems Gateway Capital internal -->
				<string>10.1.4.143/10.1.4.143</string>						<!-- TT 7 Gateway Capital (internal) -->
				<string>10.1.4.147/10.1.4.147</string>						<!-- TT 7 Gateway Capital test (internal) -->
				<string>12.229.145.161/12.229.145.162</string>					<!-- Gateway Capital Patsystems  (external)  -->
				<string>12.229.145.159/12.229.145.181</string>					<!-- Gateway Capital TT (external)  -->
				<string>12.229.145.181/12.229.145.181</string>					<!-- Gateway Capital TT (external)  -->
				<string>63.85.80.113/63.85.80.113</string>					<!-- TT 7 velocity -->
				<string>63.85.80.114/63.85.80.114</string>					<!-- TT 7 velocity -->
				<string>63.85.80.121/63.85.80.121</string>					<!-- TT 7 velocity -->
				<string>63.85.80.122/63.85.80.122</string>					<!-- TT 7 velocity -->
				<string>63.85.80.123/63.85.80.123</string>					<!-- TT 7 velocity -->
				<string>72.24.206.100/72.24.206.100</string>					<!-- Advantages Futures Internal TT 7 -->
				<string>172.24.206.91/172.24.206.91</string>					<!-- Advantages Futures Internal TT 7 -->
				<string>172.20.110.127/172.20.110.127</string>					<!-- Advantages Futures Internal TT 7 -->
				<string>38.115.196.11/38.115.196.11</string>					<!-- Advantages Futures External TT 7 -->
				<string>208.96.196.247/208.96.196.247</string>					<!-- Advantages Futures External TT 7 -->
				<string>208.96.196.250/208.96.196.250</string>					<!-- Advantages Futures External TT 7 -->
				<string>94ttfix1.advantagefutures.com/94ttfix1.advantagefutures.com</string>	<!-- Advantages Futures TT 7 -->
				<string>94ttfix2.advantagefutures.com/94ttfix2.advantagefutures.com</string>	<!-- Advantages Futures TT 7 -->
				<string>99ttfix2.advantagefutures.com/99ttfix2.advantagefutures.com</string>	<!-- Advantages Futures TT 7 -->
				<string>198.63.193.83/198.63.193.83</string>					<!-- FuturePath -->
				<string>198.63.193.84/198.63.193.84</string>					<!-- FuturePath -->
				<string>198.63.193.86/198.63.193.86</string>					<!-- FuturePath -->
				<string>12.41.48.76/12.41.48.76</string>					<!-- Alaron/TTNet -->
				<string>66.243.69.76/66.243.69.76</string>					<!-- Alaron/TTNet -->
			</Servers>
		</TrackedServers>
	</TrackedServers>
	<DataServer>
		<Host>64.202.118.132</Host>
		<Port>31654</Port>
	</DataServer>
	<DataServerNT7>
		<Host>64.202.118.144</Host>
		<Port>31654</Port>
	</DataServerNT7>
	<SupportServer>www.ninjatrader-support2.com</SupportServer>
	<SupportServerFtpDir>upload</SupportServerFtpDir>
	<SupportServerFtpPwd>hnkjrQqQvA0dgHXlbnHYhQ==</SupportServerFtpPwd>
	<SupportServerFtpUser>arbl1fxvFlE=</SupportServerFtpUser>
</NinjaTrader>