Thanks Doug,
I was hesitant to mention hosting company as they were involved trying to sort out the problem. They eventually referred me to a support person in Realmac who requested logs which I sent. Since then I have heard nothing from realmac, but mysteriously the issue has disappeared. I am grateful it appears to have gone away. But I would like answers to whether realmac imposes upload limits or speedlimiting on its RW customers because I would like to avoid these issues reappearing at a later date. If realmac DOES any of those things with the PUBLISH facility, I think they should be clearly stated somewhere for all to see, or clearly denied so that customers dont waste time and resources wondering. Perhaps that info is published somewhere and if it is I would be grateful for a link. If it happens again then I will certainly provide complete details on this forum.