Oorspronkelijk geplaatst door mesa57
Connect you're pc with an UTP cable to the linksys router and test again.
Even a 100 mbits wireless connection could slowdown a 50 mbits internet connection depending on the quality of the connection. Make sure that the connection is made in N mode.
Consider upgrading the firmware of you're linksys.
Mesa57 - thank you - you were correct. I found the problem and now it appears fixed.
I double checked and discovered that my 5Mhz "N" connection was actually set to "mixed" and another device in my network only has "G". I guess that means that all connections were running at "G" including, apparently, my laptop. I've now forced the 5mhz channel to ONLY run in "N" mode and now I get almost exactly the same speed as when cable connected... (48Mbit/4.6Mbit).