Hello,
I used to be able to install mod pack without issues. However the last version that worked for me was v.1.10.1.0_03. When I try to install the newer versions, the installer freezes at checking for updates stage and I have to kill the process. I'm using windows 7. I tried uninstalling and reinstalling and disabling windows firewall.
Unfortunately I can't find log files because I uninstalled the previous version.