This has been raised many times, for most their servers aren't slow, my map updates take around 20 minutes. If you're experiencing slow updates it's more than likely the issue is within your system, which includes your ISP
This is not the case here. DSL speed test reports a download speed of 263 Mb / s. All websites are easily accessible, with the exception of Garmin's services. The Garmin forum also reacts very slowly here. But maybe it is also due to the backbone from the USA to Europe?
