Bug - we have a bug on the LNSs right now which is causing no throttling bypass due to our MLPPP implementation. The same bug is present in our OpenWrt release.
Fix ETA 30 days or less. I'm putting that number even though it's basically done, just waiting on some other issues prior to releasing. It's best to underpromise and overdeliver than the other way around.
EDIT: please use our SSH tunnel in the interim: »
www.caneris.com/Support# ··· shtunnelIt will enable you to bypass the throttling as well.