Network speedup 
I've published a tip'n trick already... but here is another one to try out:

with these settings I achieved on download Dreambox --> PC 4090 kbyte !!! /sec 

and upload PC -> Dreambox 2911 kbyte !!! / sec 
However... I could only get this with FlashFxp ! 
Totalcommander didn't wanna give me any good results yet better than before.... 
Hardware --> P4 /3.2GHz /Intel 10/100 (set to 100 fullduplex) LAN chip on board; DLink DI614 router (internal hub) to Dreambox 
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Telnet to the Dreambox and type:

cd /proc/sys/dev/eth0/ 

echo 0 > autoneg 
echo 1 > swfdup 
echo 1 > rfduplx 
echo 100 > rspeed 

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Maybe you should also test this: 

cd /proc/sys/dev/eth0 
echo 0 > autoneg 
;echo 100 > aspeed 
echo 100 > rspeed 
echo 1 > rfduplx 
echo 1 > swfdup 
ifconfig eth0 up 
ifconfig eth0 192.168.0.x 
ifconfig eth0 mtu 1492 

To try different settings you might wanna play with the mtu entry 500 -1492 ...