I just replaced my Netgear WGR614 router with a D-LINK DIR-615, and I'm having some problems. Previously I've had my webserver running Apache on port 80 with no problem, and also a FTP at port 21.
The same issue is with my FTP server - you can connect fine, but when you try to download something, the dl speed is below 500 b/s, and it drops until you get disconnected. When I connect with the internal ip, really fast.
So I'm really confused what to try next. The ports are open, you can access it just fine - it just takes forever to load anything. I've tried different ports, but same story. I also have the latest firmware. I don't know if I have missed any settings in the UI, but I really can't think of what. The weird thing is that uTorrent can download stuff in several mb/s with no problem whatsoever.
So if you have any ideas, please help me out. Really frustrating stuff.