diff --git a/Cargo.lock b/Cargo.lock
index 93277c8..0eaa9e2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -87,6 +87,17 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "async-recursion"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5fd55a5ba1179988837d24ab4c7cc8ed6efdeff578ede0416b4225a5fca35bd0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.52",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -714,6 +725,15 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba291022dbbd398a455acf126c1e341954079855bc60dfdda641363bd6922569"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.9"
@@ -843,12 +863,14 @@ checksum = "e4a24736216ec316047a1fc4252e27dabb04218aa4a3f37c6e7ddbf1f9782b54"
 name = "nix-weather"
 version = "0.0.1"
 dependencies = [
+ "async-recursion",
  "clap",
  "clap_complete",
  "clap_mangen",
  "dns-lookup",
  "domain",
  "futures",
+ "itertools",
  "log",
  "openssl",
  "pretty_env_logger",
diff --git a/Cargo.toml b/Cargo.toml
index 53e3f59..8de4931 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,10 +16,12 @@ version = "0.0.1"
 build = "build.rs"
 
 [dependencies]
+async-recursion = "1.0.5"
 clap = { version = "4.5.1", features = ["cargo"] }
 dns-lookup = "2.0.4"
 domain = { version = "0.9.3", features = ["tokio", "resolv"] }
 futures = "0.3.30"
+itertools = "0.12.1"
 log = "0.4.21"
 openssl = { version = "0.10.63" }
 pretty_env_logger = "0.5.0"
diff --git a/src/main.rs b/src/main.rs
index 64ecd35..8e24726 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,8 +6,9 @@
 use std::{io, net::{IpAddr, SocketAddr}};
 
 use dns_lookup::lookup_host;
-use futures::{stream, StreamExt};
+use futures::{stream, StreamExt, future::join_all};
 use rayon::prelude::*;
+use itertools::Itertools;
 
 #[allow(unused)]
 use log::{debug, error, info, trace, warn};
@@ -90,7 +91,9 @@ mod net {
     use std::net::SocketAddr;
 
     use reqwest::StatusCode;
+    use async_recursion::async_recursion;
 
+    #[async_recursion]
     pub async fn nar_exists(domain: &str, domain_addr: SocketAddr, hash: &str) -> usize {
         let response = reqwest::Client::builder()
             .resolve(domain, domain_addr)
@@ -100,16 +103,18 @@ mod net {
             .send()
             .await
             .unwrap();
-        if response.status() == StatusCode::from_u16(200).unwrap() {
-            1
-        }
-        else {
-            0
+
+        match response.status().as_u16() {
+            200 => 1,
+            // Retry on ConnectionReset
+            104 => nar_exists(domain, domain_addr, hash).await,
+            _ => 0
         }
     }
 }
 
-#[tokio::main]
+// #[tokio::main(flavor = "multi_thread", worker_threads = 100)]
+#[tokio::main(flavor = "multi_thread")]
 async fn main() -> io::Result<()> {
     pretty_env_logger::init();
     let matches = cli::build_cli().get_matches();
@@ -121,16 +126,28 @@ async fn main() -> io::Result<()> {
 
     let ip = ips[0];
 
-    let binding = get_requisites("DBCAC");
     //let connection_buffer = stream::iter(binding.lines().map(|line| line.to_owned()).collect::<Vec<_>>()); //.buffer_unordered(20);
-    let connection_buffer = stream::iter(binding.lines().map(|line| line.to_owned()).collect::<Vec<_>>()); //.buffer_unordered(20);
+    //let connection_buffer = stream::iter(binding.lines().map(|line| line.to_owned()).collect::<Vec<_>>()); //.buffer_unordered(20);
+
+    let binding = get_requisites("DBCAC");
+    let connection_buffer = binding.lines().map(|line| line.to_owned()).collect::<Vec<_>>();
+
     // FIXME we take ten just for testing
-    let stuff = connection_buffer.take(1000).then(|hash| async move {
-        info!("connecting to {hostname} {ip:#?} for {hash}");
-        net::nar_exists(hostname, SocketAddr::new(ip.clone(), 443), &hash).await
-    }).collect::<Vec<usize>>();
+    let tasks = connection_buffer
+        .into_iter()
+        //.take(1000)
+        .map(|hash| {
+            tokio::spawn(async move {
+                info!("connecting to {hostname} {ip:#?} for {hash}");
+                net::nar_exists(hostname, SocketAddr::new(ip.clone(), 443), &hash).await
+            })
+        })
+        .collect_vec();
+
+    let sum: usize = join_all(tasks).await.into_iter().map(|result| result.unwrap()).sum();
+
+    println!("sum {:#?}", sum);
         //map(|hash| async {net::nar_exists(hostname, SocketAddr::new(ip.clone(), 443), hash).await}).collect::<Vec<_>>();
-    println!("sum {:#?}", stuff.await.par_iter().sum::<usize>());
 
     // let response = reqwest::Client::builder()
     //     .resolve(