I also got this firewall error. I had previously logged into Vortex using the Nexus account. I started the download for a KOTOR file but it failed in Vortex with the error: Network connect was not permitted, please check your firewall settings. I closed Vortex and reopened it again. Then started the download again from Nexus website. This time the download started correctly and continued. I did not need to turn off or adjust any firewall settings. Hope this helps :smile: