All port settings should use 6346. Leave LW on for some time before you do the bug report. Allow LW to settle down 1st.
You might want to updte your LW to 4.2.4
Here's ome hints on optimising LW:
A well set-up LW can start to automatically continue its dwnlding after it's settled down perhaps 2 out of 3 times you open LW. Optimising LW & Maximising Uplds & Dwnlds A (1st post only) & also Part B which is even better & last & least are search & dwnld hints.