I was running some speed tests yesterday and noticed the WAN was slightly slower in performace then the WRTSL54GS. I then went to http://www.dslreports.com/tweaks and ran some tests at the end of the test the results showed "Turn on Selective Acks" though effiency was 99% i checked the setting with the DRTCP utility. it reported it was enabled. to test this i plugged in the WRTSL54GS and low and behold the Selective Acks were enabled when i ran the test again. I ran this test 3-4 times to confirm the findings. can anyone else confirm the RV042 and even other RVxxx units are blocking Selective Acks feature from the Operating system. this therefore slows the throughput down.