Usually this issue is caused by the interference of a Internet security program (a firewall, an anti-virus, an anti-malware, etc.) with the game update feature. Please check if any of your Internet security programs is interfering with the download from our ftp servers.
Alternatively, you can manually download and install the updates from the Member's Area.
You can download games and patches/updates from the Member's Area provided they are registered to the account. Please see the forum post below which explains how to do this:
https://www.matrixgames.com/forums/tm.asp?m=4675348