When I request a log on to the FIX gateway with these credentials, I get the error shown here:

Send:
8=FIX.4.4|9=127|35=A|49=FEED_DEMO10037RKe_DEMOFIX|56=DUKASCOPYFIX|34=42|52=20140804-15:30:08.602|98=0|108=30|553=DEMO2hgxKm|141=Y|554=xxxxxxx|10=113

Receive:
8=FIX.4.4|9=166|35=5|34=1|49=DUKASCOPYFIX|52=20140804-14:32:19.374|56=FEED_DEMO10037RKe_DEMOFIX|58=Tried to send a reject while not logged on: SendingTime accuracy problem (field 0)|10=102|

OK. This issue was partially resolved. Notice that the sending time and message receiving times lagg by 1 hour. Thus was due to the fact that my PC was set to UTC, Edinburg, Lisbon, London. to 15:30:08.602 (daylight savings included) when sending.

I changed this to UTC Coordinated Universal Time where the time sent was then in sync with the server time.

In this case, there was no SendingTime accuracy issue as in the first case, but there was an authorisation failure issue:

8=FIX.4.4|9=127|35=A|49=FEED_DEMO10037RKe_DEMOFIX|56=DUKASCOPYFIX|34=42|52=20140804-16:24:02.724|98=0|108=30|553=xxxxxxxxxxxx|141=Y|554=xxxxxxxxxxxxxx|10=116|

8=FIX.4.4|9=106|35=5|34=1|49=DUKASCOPYFIX|52=20140804-16:24:18.740|56=FEED_DEMO10037RKe_DEMOFIX|58=Authorization failed: |10=161|

Is there anyone who can advise?