The Money Converter URL for exchange rate feeds seems to have changed from http://themoneyconverter.com/{0}/rss.xml to http://themoneyconverter.com/rss-feed/{0}/rss.xml where {0} is the currency code.
Fixed in change set (http://nopcommerce.codeplex.com/SourceControl/changeset/changes/205ab6378edc)
I have the same problem, Get live rates function doesn't work correctly, and it always show "The remote server returned an error: (404) Not Found. "
I followed the "205ab6378edc" to check this file: ..\src\nopCommerce_3.10_Source\Plugins\Nop.Plugin.ExchangeRate.McExchange\McExchangeRateProvider.cs, the url of the money converter is correct.
Is there anyone that can help me to solve this problem?
Attach the Exchange rate providers plugin's details
I tested the "Get live rates" feature on 3.10 and it is working correctly. For whichever currency you have marked as the primary exchange rate currency, ensure that the currency code is valid. The server providing the live rates will return a 404 for incorrect or unsupported currency codes.
For example, rates for a valid currency code (USD): http://themoneyconverter.com/rss-feed/usd/rss.xml
An invalid currency code (ZZZ) (server returns a 404): http://themoneyconverter.com/rss-feed/zzz/rss.xml