There is no limit in the case of concurrent viewers. You can purchase enough bandwidth as per the viewer’s number.
Why I am facing streaming issues in a region?
The CDN network selection is an important part. You have to make sure that the CDN PoP is available in your delivery regions. The CDN usually delivers contents from the nearest CDN PoP. Suppose you have purchased a standard network for Asia delivery. The users from Asia regions will get the delivery from the EU or NA PoPs. The standard network has only PoPs in NA and EU. 5centsCDN offers 4 different networks. You can check the PoP details here.
You can contact our sales team for finding a suitable network for your requirement. Simply contact us through the live chat or ticket.