diff --git a/packages/agent/src/actor.ts b/packages/agent/src/actor.ts
index 72ed8c8e..cc588e41 100644
--- a/packages/agent/src/actor.ts
+++ b/packages/agent/src/actor.ts
@@ -6,9 +6,9 @@ import {
   QueryResponseRejected,
   QueryResponseStatus,
   ReplicaRejectCode,
-  SubmitResponse,
+  SubmitResponse, v2ResponseBody,
   v3ResponseBody,
-} from './agent';
+} from "./agent";
 import { AgentError } from './errors';
 import { bufFromBufLike, IDL } from '@dfinity/candid';
 import { pollForResponse, PollStrategyFactory, strategy } from './polling';
@@ -582,6 +582,19 @@ function _createActorMethod(
           }
         }
       }
+
+      // handle v2 response errors by throwing an UpdateCallRejectedError object
+      if (!response.ok || response.body /* IC-1462 */) {
+        const { reject_code, reject_message, error_code } = response.body as v2ResponseBody;
+        throw new UpdateCallRejectedError(cid,
+          methodName,
+          requestId,
+          response,
+          reject_code,
+          reject_message,
+          error_code)
+      }
+
       // Fall back to polling if we receive an Accepted response code
       if (response.status === 202) {
         const pollStrategy = pollingStrategyFactory();
diff --git a/packages/agent/src/certificate.ts b/packages/agent/src/certificate.ts
index d9ff728e..1f537478 100644
--- a/packages/agent/src/certificate.ts
+++ b/packages/agent/src/certificate.ts
@@ -272,19 +272,17 @@ export class Certificate {
 
     await cert.verify();
 
-    if (this._canisterId.toString() !== MANAGEMENT_CANISTER_ID) {
-      const canisterInRange = check_canister_ranges({
-        canisterId: this._canisterId,
-        subnetId: Principal.fromUint8Array(new Uint8Array(d.subnet_id)),
-        tree: cert.cert.tree,
-      });
-      if (!canisterInRange) {
-        throw new CertificateVerificationError(
-          `Canister ${this._canisterId} not in range of delegations for subnet 0x${toHex(
-            d.subnet_id,
-          )}`,
-        );
-      }
+    const canisterInRange = check_canister_ranges({
+      canisterId: this._canisterId,
+      subnetId: Principal.fromUint8Array(new Uint8Array(d.subnet_id)),
+      tree: cert.cert.tree,
+    });
+    if (!canisterInRange) {
+      throw new CertificateVerificationError(
+        `Canister ${this._canisterId} not in range of delegations for subnet 0x${toHex(
+          d.subnet_id,
+        )}`,
+      );
     }
     const publicKeyLookup = lookupResultToBuffer(
       cert.lookup(['subnet', d.subnet_id, 'public_key']),