Navision (3.6 only) ODBC with UPS Worldship

I have been connecting Worldship to Navision via ODBC for years now but have recently experience problems with Navision 3.6 ODBC driver. For UPS Worldship to connect to 3.6 takes about 20 hours. Lower versions of Navision take about 15 to 20 minutes. It seems like it has something to do with the number of tables in 3.6. Anyway has anyone run into this? Is there a way to connect Worldship to Access and Access into Navision (when I try I am not able to link Worldship to a linked table in Access)? Any suggestions are welcome.