If you have the open/closed beta client and your DL speed sucks when trying to DL the retail client you can try this. Open your localconfig.xml file delete everything in it and put this there instead
<HttpPatchAddr>
http://aoc-us-update.live.ageofconan.com/upm </HttpPatchAddr>
<ClientHttpPatchAddr>
http://aoc-us-gameupdate.live.ageofconan.com/upm </ClientHttpPatchAddr>
<HttpPatchFolder> AoCLiveUS </HttpPatchFolder>
<UniverseAddr> aoc-us.live.ageofconan.com:7000 </UniverseAddr>
<DevName> conan </DevName>
<UniverseVersion> 2 </UniverseVersion>
<PatchVersion> 17 </PatchVersion>
Since the patcher doesnt open til tomorrow, there is no gaurntee that this will work. Id say keep the client DLing and try this tomorrow.