Cannot download epubs from Calibre to iPhone

[jdljal]

I have successfully used Calibre in the past to download books from Calibre on my Win 7 PC to my iPhone 4S. No settings have been changed.

Now Calibre works well and I can add books, convert formats to epub, etc. When I start the content server, and open either MegaReader or Stanza on my iPhone, the Calibre catalog is recognized as an "other catalog" with the name http://jdl-PC.local.:8080/stanza (same as prior successful use) just as it has in the past. When I click on that catalog, the phone tries to open the catalog to show the included books but always shows an "Error" showing that it timed out.

In short, with either reader, the Calibre catalog on my PC is recognized by the iPhone reader apps but the books in the catalog will not show up in the reader for download.

Any suggestions would be appreciated.