diff --git a/configuration.ts b/configuration.ts
index feb2627d..c1b66ae8 100644
--- a/configuration.ts
+++ b/configuration.ts
@@ -158,7 +158,7 @@ export class Configuration {
     }
 
     this.baseOptions = baseOptions;
-    this.retryParams = params.retryParams;
+    this.retryParams = Object.assign(GetDefaultRetryParams(), params.retryParams);
     this.telemetry = new TelemetryConfiguration(params?.telemetry?.metrics);
   }
 
diff --git a/tests/client.test.ts b/tests/client.test.ts
index fbae2b77..4fe36b17 100644
--- a/tests/client.test.ts
+++ b/tests/client.test.ts
@@ -11,14 +11,12 @@ import {
   ListUsersResponse,
   ConsistencyPreference,
   ErrorCode,
-  BatchCheckRequest,
   ClientWriteRequestOnDuplicateWrites,
   ClientWriteRequestOnMissingDeletes,
 } from "../index";
 import { baseConfig, defaultConfiguration, getNocks } from "./helpers";
 
 const nocks = getNocks(nock);
-nock.disableNetConnect();
 
 describe("OpenFGA Client", () => {
 
@@ -1875,7 +1873,8 @@ describe("OpenFGA Client", () => {
         const scope0 = nocks.check(defaultConfiguration.storeId!, tuples[0], defaultConfiguration.getBasePath(), { allowed: true }).matchHeader("X-OpenFGA-Client-Method", "ListRelations");
         const scope1 = nocks.check(defaultConfiguration.storeId!, tuples[1], defaultConfiguration.getBasePath(), { allowed: false }).matchHeader("X-OpenFGA-Client-Method", "ListRelations");
         const scope2 = nocks.check(defaultConfiguration.storeId!, tuples[2], defaultConfiguration.getBasePath(), { allowed: true }).matchHeader("X-OpenFGA-Client-Method", "ListRelations");
-        const scope3 = nocks.check(defaultConfiguration.storeId!, tuples[3], defaultConfiguration.getBasePath(), "" as any, 500).matchHeader("X-OpenFGA-Client-Method", "ListRelations");
+        // Mock all default retries+1 to exhaust them all and trigger actual failure.
+        const scope3 = Array.from({ length: 4 }, () => nocks.check(defaultConfiguration.storeId!, tuples[3], defaultConfiguration.getBasePath(), "" as any, 500).matchHeader("X-OpenFGA-Client-Method", "ListRelations"));
         const scope4 = nocks.check(defaultConfiguration.storeId!, tuples[4], defaultConfiguration.getBasePath(), {
           "code": "validation_error",
           "message": "relation 'workspace#can_read' not found"
@@ -1890,12 +1889,12 @@ describe("OpenFGA Client", () => {
         expect(scope0.isDone()).toBe(false);
         expect(scope1.isDone()).toBe(false);
         expect(scope2.isDone()).toBe(false);
-        expect(scope3.isDone()).toBe(false);
+        expect(scope3.every(scope => scope.isDone())).toBe(false);
         expect(scope4.isDone()).toBe(false);
         expect(scope5.isDone()).toBe(false);
 
         try {
-          const response = await fgaClient.listRelations({
+          await fgaClient.listRelations({
             user: "user:81684243-9356-4421-8fbf-a4f8d36aa31b",
             object: "workspace:1",
             relations: ["admin", "guest", "reader", "viewer"],
@@ -1904,7 +1903,7 @@ describe("OpenFGA Client", () => {
           expect(scope0.isDone()).toBe(true);
           expect(scope1.isDone()).toBe(true);
           expect(scope2.isDone()).toBe(true);
-          expect(scope3.isDone()).toBe(true);
+          expect(scope3.every(scope => scope.isDone())).toBe(true);
           expect(scope4.isDone()).toBe(false);
           expect(scope5.isDone()).toBe(false);
           expect(err).toBeInstanceOf(FgaApiError);
diff --git a/tests/index.test.ts b/tests/index.test.ts
index e3c661cc..0830e125 100644
--- a/tests/index.test.ts
+++ b/tests/index.test.ts
@@ -425,12 +425,56 @@ describe("OpenFGA SDK", function () {
       });
     });
 
+    describe("429 with default retry config is successful", () => {
+      const tupleKey = {
+        user: "user:xyz",
+        relation: "viewer",
+        object: "foobar:x",
+      };
+      let failedRequestNock: nock.Scope;
+
+      beforeEach(async () => {
+        fgaApi = new OpenFgaApi({ ...baseConfig });
+
+        nocks.tokenExchange(OPENFGA_API_TOKEN_ISSUER, "test-token");
+
+        failedRequestNock = nock(basePath)
+          .post(
+            `/stores/${storeId}/check`,
+            {
+              tuple_key: tupleKey,
+              authorization_model_id: "01GXSA8YR785C4FYS3C0RTG7B1"
+            },
+            expect.objectContaining({ Authorization: "Bearer test-token" })
+          )
+          .times(1)
+          .reply(429, {
+            code: "rate_limit_exceeded",
+            message: "nock error",
+          });
+
+        nocks.check(baseConfig.storeId!, tupleKey);
+      });
+
+      afterEach(() => {
+        nock.cleanAll();
+      });
+
+      it("should return allowed", async () => {
+        const result = await fgaApi.check(baseConfig.storeId!, { tuple_key: tupleKey, authorization_model_id: "01GXSA8YR785C4FYS3C0RTG7B1"}, {});
+
+        expect(failedRequestNock.isDone()).toBe(true);
+        expect(result.allowed).toBe(true);
+      });
+    });
+
     describe("429 with retry in config and retry is successful", () => {
       const tupleKey = {
         user: "user:xyz",
         relation: "viewer",
         object: "foobar:x",
       };
+      let failedRequestNock: nock.Scope;
 
       beforeEach(async () => {
         const updateBaseConfig = {
@@ -441,11 +485,12 @@ describe("OpenFGA SDK", function () {
 
         nocks.tokenExchange(OPENFGA_API_TOKEN_ISSUER, "test-token");
 
-        nock(basePath)
+        failedRequestNock = nock(basePath)
           .post(
             `/stores/${storeId}/check`,
             {
               tuple_key: tupleKey,
+              authorization_model_id: "01GXSA8YR785C4FYS3C0RTG7B1"
             },
             expect.objectContaining({ Authorization: "Bearer test-token" })
           )
@@ -465,6 +510,7 @@ describe("OpenFGA SDK", function () {
       it("should return allowed", async () => {
         const result = await fgaApi.check(baseConfig.storeId!, { tuple_key: tupleKey, authorization_model_id: "01GXSA8YR785C4FYS3C0RTG7B1"}, {});
 
+        expect(failedRequestNock.isDone()).toBe(true);
         expect(result.allowed).toBe(true);
       });
     });
@@ -475,11 +521,12 @@ describe("OpenFGA SDK", function () {
         relation: "viewer",
         object: "foobar:x",
       };
+      let failedRequestNock: nock.Scope;
 
       beforeEach(async () => {
         nocks.tokenExchange(OPENFGA_API_TOKEN_ISSUER, "test-token");
 
-        nock(basePath)
+        failedRequestNock = nock(basePath)
           .post(
             `/stores/${storeId}/check`,
             {
@@ -507,6 +554,7 @@ describe("OpenFGA SDK", function () {
           { retryParams: GetDefaultRetryParams(2, 10) }
         );
 
+        expect(failedRequestNock.isDone()).toBe(true);
         expect(result.allowed).toBe(true);
       });
     });
diff --git a/tests/setup.ts b/tests/setup.ts
index c756aa32..de84c749 100644
--- a/tests/setup.ts
+++ b/tests/setup.ts
@@ -1,5 +1,9 @@
 import * as nock from "nock";
 
+beforeEach(() => {
+    nock.disableNetConnect();
+});
+
 afterAll(() => {
     nock.restore();
 });
\ No newline at end of file