Hi RM
If you look at the real date the message was received it is 11th January 1940
The Enigma message received is dated 7th October 1939
Make sure your Enigma Machine is set to the date of the message received.
In this case 1939.
For further messages just reset your Enigma Machine.
Check this out.
Post #169 How To Use The Kriegsmarine Grid Numbers
Peter