AM300 owner also...got the same problem like u.. this modem is really weak compare to my thomson speedtouch st510 v4 (the best and most stable modem i ever use but mine oredi died). Soon, i'm goin to ditch this stupid modem and get the thomson speedtouch 536 from Australia.

1. AM300's configuration webpage is really slow. I can't find  the hardware spec for this modem but i think this modem dun hv a good/fast processor and enough ram to sustain our BT usage. Basically, this modem oni good enough for surfing ler..hmm..maybe good oso if we set it bridge mode oni and pair it with a powerful wireless router like Linksys WRT54G or Belkin pre-N.

2. The port forwarding setting need to be save every time i reboot the modem...really annoying. If not it wont work.

3. If we set the modulation to AUTO mode..sometimes u notice that the modem sync at wrong speed like 1024/96.. my advice dun use the auto mode.

until today there is still no new firmware from Linksys. Get another modem ler

No problem for me