I think you might have a firewall. First try using 127.0.0.1 instead of 192.168.4.116
in /electrs/config.tomlelectrum_rpc_addr = "127.0.0.1:50001"Make sure that the rcpallowip= coorelates to your local subnet address range.
bitcoin.conf rpcbind=127.0.0.1
rpcallowip=192.168.4.0/24
rpcport=8332