"fresh install" means
I mean if I install this and have no previous blockchain data. It's not syncing for days.
in the zelcash.conf text file in C:\Users\YOURUSERNAME\AppData\Roaming\Zelcash\ folder, you can try adding nodes from the link i posted, e.g.
addnode=5.189.232.165
addnode=192.99.16.198
etc.
If you still cant establish a connection, something is blocking you. Could be your ISP (try a VPN), could be firewall/anti virus software (check there is an exemption in the software for ZelCash swing wallet), things that can block inbound/outbound data connections.