diff --git a/clients/client-core/src/config/mod.rs b/clients/client-core/src/config/mod.rs
index 6373c63617..c76d990de8 100644
--- a/clients/client-core/src/config/mod.rs
+++ b/clients/client-core/src/config/mod.rs
@@ -26,7 +26,7 @@ pub mod persistence;
 pub const MISSING_VALUE: &str = "MISSING VALUE";
 
 // 'CLIENT'
-pub const DEFAULT_VALIDATOR_REST_ENDPOINT: &str = "https://validator.nymtech.net";
+pub const DEFAULT_VALIDATOR_REST_ENDPOINT: &str = "http://testnet-validator1.nymtech.net:8081";
 
 // 'DEBUG'
 const DEFAULT_ACK_WAIT_MULTIPLIER: f64 = 1.5;
diff --git a/gateway/src/config/mod.rs b/gateway/src/config/mod.rs
index fc6c693951..8f652ea8c5 100644
--- a/gateway/src/config/mod.rs
+++ b/gateway/src/config/mod.rs
@@ -32,7 +32,8 @@ pub(crate) const MISSING_VALUE: &str = "MISSING VALUE";
 // 'GATEWAY'
 const DEFAULT_MIX_LISTENING_PORT: u16 = 1789;
 const DEFAULT_CLIENT_LISTENING_PORT: u16 = 9000;
-pub(crate) const DEFAULT_VALIDATOR_REST_ENDPOINT: &str = "https://validator.nymtech.net";
+pub(crate) const DEFAULT_VALIDATOR_REST_ENDPOINT: &str =
+    "http://testnet-validator1.nymtech.net:8081";
 
 // 'DEBUG'
 // where applicable, the below are defined in milliseconds
diff --git a/mixnode/src/config/mod.rs b/mixnode/src/config/mod.rs
index ea682a3afa..8ea27681f2 100644
--- a/mixnode/src/config/mod.rs
+++ b/mixnode/src/config/mod.rs
@@ -31,8 +31,9 @@ pub(crate) const MISSING_VALUE: &str = "MISSING VALUE";
 
 // 'MIXNODE'
 const DEFAULT_LISTENING_PORT: u16 = 1789;
-pub(crate) const DEFAULT_VALIDATOR_REST_ENDPOINT: &str = "https://validator.nymtech.net";
-pub(crate) const DEFAULT_METRICS_SERVER: &str = "https://metrics.nymtech.net";
+pub(crate) const DEFAULT_VALIDATOR_REST_ENDPOINT: &str =
+    "http://testnet-validator1.nymtech.net:8081";
+pub(crate) const DEFAULT_METRICS_SERVER: &str = "http://testnet-metrics.nymtech.net:8080";
 
 // 'DEBUG'
 const DEFAULT_METRICS_RUNNING_STATS_LOGGING_DELAY: Duration = Duration::from_millis(60_000);