Perhaps did you post the wrong log...
Also, you did not reply my question: do you run the viewer behind a router (especially a WiFi one) ?
I just uploaded new releases: try v1.26.14.2 and see if it fares better for you. In case of problems, you can also disable Marketplace initialization in this version, by setting "MarketplaceDisabled" to TRUE (before loging in).
Finally, the main difference between LL's VMM viewer and the Cool VL Viewer is that the latter unconditionally attempts to initialize the Marketplace on login, while the former waits for you to open the Marketplace floater: what happens when you do open it, in LL's viewer (are you seeing the same issues as with the Cool VL Viewer or not) ?