Hi Glasgla95,
I encountered the same issues. It's important to add the Dynamic Link Library (.dll) as an exception in your antivirus program. For me, the \Skylords Reborn\pcre3.dll was crucial.
If this doesn't work, you can check if you have IPv6 enabled.
I had IPv6 enabled on my network adapter, which caused the launcher download to take many hours. In Windows, under network settings, you need to modify the adapter settings by selecting your default Ethernet adapter, then going to Properties and disabling "Internet Protocol Version 6 (TCP/IPv6)." This at least worked for me, and I hope it works for you too.