Size limit for upload?

The system works fine when I'm uploading files smaller than 200k. However, for files (any format) larger than 200k, upload terminates itself and an error message saying DNS error pops up.

How can I solve this problem?

Hi Alan,
Please take a look at the following threads:

IIS 6.0: upload and download issues
IIS 6.0 problems part 2

I think this will solve your problem.