I have a workbook with multiple Web Queries defined. The queries are importing data from publicly available sites. My problem is whether I use "Refresh All" or select individual queries and use the "Refresh Data" function, I sometimes get errors indicating the data or the "file" was not found. I can go to the individual queries that failed to "Refresh Data" and with multiple attempts can eventually succeed. I have noticed that the refresh functions are more likely to succeed the first time during periods when web users are less likely to be active (like very early on Saturdays or Sundays).

I am guessing the there is a timing or timeout issue causing this problem.

My internet connection is broadband providing me a 5 Megabit download speed, so I suspect the issue is related to volume of traffic at the source website.

Is there a parameter that allows control of the timeout period for a Web Query or the Refresh Data command that can help me?