I have been using Zoom successfully for over a month. From Wednesday 13th May I started to experience timeout problems. These have become successively worst and now I often simply cannot connect and am sent a 5003 error suggesting blocking by a firewall or bad proxy. All of this applies only when I am connected through my own BT broadband. If I connect via BT Fon everything still works fine. I realise this is rather a technical question but hope someone may be albe to help me to understand what I need to do to correct it please. Many thanks.
