diff --git a/packages/client/src/coordinator/connection/connection.ts b/packages/client/src/coordinator/connection/connection.ts
index 8027cf2da2..e0928c017e 100644
--- a/packages/client/src/coordinator/connection/connection.ts
+++ b/packages/client/src/coordinator/connection/connection.ts
@@ -60,7 +60,6 @@ export class StableWSConnection {
   totalFailures: number;
   ws?: WebSocket;
   wsID: number;
-
   client: StreamClient;
 
   constructor(client: StreamClient) {
@@ -209,6 +208,38 @@ export class StableWSConnection {
     return `${this.client.wsBaseURL}/connect?${params.toString()}`;
   };
 
+  /**
+   * _probeDNS - Fire-and-forget DNS diagnostic probes.
+   * Logs which domains resolve and which fail when the WS connection fails.
+   */
+  _probeDNS = () => {
+    const token = this.client._getToken();
+    const authHeaders = {
+      'stream-auth-type': this.client.getAuthType(),
+      ...(token ? { Authorization: token } : {}),
+    };
+    const probes: Array<{
+      url: string;
+      method?: string;
+      headers?: HeadersInit;
+    }> = [
+      { url: `https://hint.stream-io-video.com/`, method: 'HEAD' },
+      {
+        url: `https://chat.stream-io-api.com/hi?api_key=${this.client.key}`,
+        headers: authHeaders,
+      },
+      {
+        url: `https://video.stream-io-api.com/hi?api_key=${this.client.key}`,
+        headers: authHeaders,
+      },
+    ];
+    for (const { url, method, headers } of probes) {
+      fetch(url, { method: method ?? 'GET', headers })
+        .then(() => this._log(`[DNS-PROBE] ${url}: OK`))
+        .catch((e) => this._log(`[DNS-PROBE] ${url}: FAILED - ${e.message}`));
+    }
+  };
+
   /**
    * disconnect - Disconnect the connection and doesn't recover...
    *
@@ -285,6 +316,7 @@ export class StableWSConnection {
   async _connect() {
     if (this.isConnecting) return; // ignore _connect if it's currently trying to connect
     this.isConnecting = true;
+    this._probeDNS();
     let isTokenReady = false;
     try {
       this._log(`_connect() - waiting for token`);
@@ -327,6 +359,7 @@ export class StableWSConnection {
       this.isConnecting = false;
       // @ts-expect-error type issue
       this._log(`_connect() - Error - `, err);
+      this._probeDNS();
       this.client.rejectConnectionId?.(err);
       throw err;
     }
@@ -344,6 +377,7 @@ export class StableWSConnection {
     options: { interval?: number; refreshToken?: boolean } = {},
   ): Promise<void> {
     this._log('_reconnect() - Initiating the reconnect');
+    this._probeDNS();
 
     // only allow 1 connection at the time
     if (this.isConnecting || this.isHealthy) {
diff --git a/sample-apps/react/react-dogfood/helpers/client.ts b/sample-apps/react/react-dogfood/helpers/client.ts
index 9c9a4740be..adb616293a 100644
--- a/sample-apps/react/react-dogfood/helpers/client.ts
+++ b/sample-apps/react/react-dogfood/helpers/client.ts
@@ -83,7 +83,7 @@ export const createTokenProvider = (
     const params = new URLSearchParams({
       user_id: userId || '!anon',
       environment,
-      exp: String(4 * 60 * 60), // 4 hours
+      exp: String(60),
     } satisfies CreateJwtTokenRequest);
 
     const res = await fetch(`${basePath}/api/auth/create-token?${params}`);
diff --git a/sample-apps/react/react-dogfood/helpers/jwt.ts b/sample-apps/react/react-dogfood/helpers/jwt.ts
index c8a33af41f..bddfe089f8 100644
--- a/sample-apps/react/react-dogfood/helpers/jwt.ts
+++ b/sample-apps/react/react-dogfood/helpers/jwt.ts
@@ -5,8 +5,7 @@ import { decodeBase64 } from 'stream-chat';
  * The maximum validity of a token, in seconds.
  * Defaults to 7 days.
  */
-export const maxTokenValidityInSeconds: number =
-  Number(process.env.MAX_TOKEN_EXP_IN_SECONDS) || 7 * 24 * 60 * 60; // 7 days
+export const maxTokenValidityInSeconds: number = 60;
 
 export const createToken = async (
   userId: string,