maybe you can turn off your anti-virus software and windows firewall for a try

well, I don't think there is a " Bandwidth Control" function on this router........

well.....I wish so too...maybe you can send an e-mail to TP-LINK....tell them what you want But if only few people claim that, I don't think they will spend their time and energy on this..

I think QoS won't help you... Go to 8901's web page, find MTU, change it to 1400 Have a try

TP-LINK claims 8970 supports no-ip and dyndns. As for other DDNS server, maybe they haven't test or something, but you can still have a try and check if 8970 support dnssomatic. If it supports, you...

reset your router to have a try, if there still no wireless anten, maybe it's broken......