Umm ... I don't suppose you know which version of BEFSR41. I'll give you the instructions to forward a port for each version just in case & you should use Port 6346: 1. (a) BEFSR41 version 1 & 2 , (b) BEFSR41 V2 FW 1.40.2 , (c) BEFSR41 V3, V4 & V5 , & (d) BEFSR41-CA

You will also need to Force IP on LW. See instructions & sample image here to force ip in LW

After doing the above you should be fine. You can double-check by do the Bug Report check for incoming (instrucitons & sample image) which needs to be True. If it is you're fine.