I referred to setup for another service provider and substituted relevant Vicnet bits to get it to work. Only once I couldn't log on at all for several hours one afternoon. Occasionally the link from Internet Access just doesn't work. In August-September it often took a few 'retries' to dial in. I haven't had the problems.
Lines drop out two or three times per week.
Quite often your rotary or modem rack does not answer the first time. The connection software supplied by Vicnet does not always behave correctly. For instance, it sometimes does not indicate when the connection has been made. This sometiimes the connection drops out. More attractive graphics.