Nuntio Articles and Nuntio Links are quite big installation packages with both of them being over 5 MB in size. On slower connections and/or slower servers you may run into an IIS execution timeout.
You can avoid such behaviour by verifying a few settings in your web.config file before uploading the module instalaltion package:
This line tells IIS that the maximum upload size (maxRequestLength) is 8 Mb. This is fine for the purpose of installing Nuntio. It can also tell the webserver after what time it should stop executing the current request, and, by default, this is not explicitely set in the configuration and the webserver therefore will fall back into the default behaviour, e.g. kill the process after 90 seconds. It is recommended to change the line from above to read as follows:
This will cause the upload to timeout after 4 minutes which should be fine is most environments.