I am the owner/operator/admin/DJ of Rockradio1 and I can assure you that we do not do any of the things that you or that tech suggest. We get over 1400 people connecting at max times and very few, if any, have problems with buffering. The tech that you spoke to forgot to add this as a possible reason. Usually the culprit is the listeners connection or the path that is taken from them to the rockradio1 servers.
We have servers located in various places around the world. In the future you can try to connect to our servers manually by using the following links.
Big Props for Rockradio1. Way to step up and go beyond the call of duty. I clicked on your 1st link and opened it my music library, after which I just dragged it to my "Radio Stations" folder. I have been enjoying your music interruption free ever since, Rock On.