Configure esplora to point to the bitcoind servers ip address - Part 3
Have you checked the following:


do you use bitcoin rpc standard port for the network you are using? If not or not sure specify it explicitly with --daemon-rpc-addr 127.0.0.1:8332 
Are you sure the .cookie file is in the default position? Try the explicit option --cookie username:password
Is bitcoind on the same machine? By default only rpc connection from localhost are allowed


If none of the above work, please post log from eletrs