[jaromanda]

supported bandwidth does not equate to AVAILABLE bandwidth

I use a linux router and set QoS rules such that my streams are guaranteed enough bandwidth at HIGH priority

BUT, as the opticodec thing doesn't have issues, it must be something to do with software, as you say

Shoutcast DSP hasn't changed, it's still the same version, so I would guarantee it's not that

enc_lame.dll may have changed