diff --git a/eden/scm/lib/doctor/network/Cargo.toml b/eden/scm/lib/doctor/network/Cargo.toml
index 8096984a12..b577e968c5 100644
--- a/eden/scm/lib/doctor/network/Cargo.toml
+++ b/eden/scm/lib/doctor/network/Cargo.toml
@@ -8,6 +8,7 @@ edition = "2021"
 [dependencies]
 auth = { version = "0.1.0", path = "../../auth" }
 configmodel = { version = "0.1.0", path = "../../configmodel" }
+curl = { version = "0.4.41", features = ["http2"] }
 hg-http = { version = "0.1.0", path = "../../hg-http" }
 http = "0.2"
 http-client = { version = "0.1.0", path = "../../http-client" }
diff --git a/eden/scm/lib/doctor/network/src/lib.rs b/eden/scm/lib/doctor/network/src/lib.rs
index 3ed40dd081..c87cc51018 100644
--- a/eden/scm/lib/doctor/network/src/lib.rs
+++ b/eden/scm/lib/doctor/network/src/lib.rs
@@ -152,7 +152,18 @@ fn diagnose_http_error(config: &dyn Config, err: &HttpError) -> String {
         ),
         HttpError::InvalidCert(err, _) => maybe_append_help(format!("{}", err), "tlsauthhelp"),
         HttpError::MissingCerts(err) => maybe_append_help(format!("{}", err), "tlsauthhelp"),
-        _ => format!("{}", err),
+        HttpError::RequestFailure(HttpClientError::Curl(err)) => diagnose_curl_error(err),
+
+        HttpError::Config(err) => err.to_string(),
+        HttpError::RequestFailure(_) => format!("{}", err),
+    }
+}
+
+fn diagnose_curl_error(err: &curl::Error) -> String {
+    if err.is_operation_timedout() {
+        "Network timeout. Please check your connection.".to_string()
+    } else {
+        format!("{}", err)
     }
 }