I was going through the Airport Utility on my iMac, went to Manual Setup, and headed over to the wireless tab. I was just really looking at the things out of curiosity. I saw that under Radio Mode, 802.11n (b/g compatible) was selected, and changed it to 802.11n only, to see if I could get any faster speeds out of my connection. Rebooted the AP express, then downloads went at 50kbs (usually 150-160). Seeing as that was harmful at best, I quickly switched back to the normal b/g compatible, but still got the 50kbs speeds. Now I'm stuck, with my internet moving at one third its previous speed.
I just installed this AirPort Express yesterday, and am very new to using it, so all thoughts and help are greatly appreciated.
iMac (Aluminum) 20", Mac OS X (10.5.2), 2GB RAM, 250GB HD, 2.0GHz Intel Core 2 Duo Processor, 128MB Video Memory
It might be notable to say that originally when I got the DSL, it went at 40kbs, and then at some point jumped to 150 and stayed there. So maybe it's just jumping again. I just assume it was the AP Express because I was messing with that when it changed.