diff --git a/test/registered/npu/performance/qwen3_5_397b/test_npu_qwen3_5_397b_w4a8_8p_in3k5_out1k5_50ms.py b/test/registered/npu/performance/qwen3_5_397b/test_npu_qwen3_5_397b_w4a8_8p_in3k5_out1k5_50ms.py
index 3ee4945e4..aa2335e24 100644
--- a/test/registered/npu/performance/qwen3_5_397b/test_npu_qwen3_5_397b_w4a8_8p_in3k5_out1k5_50ms.py
+++ b/test/registered/npu/performance/qwen3_5_397b/test_npu_qwen3_5_397b_w4a8_8p_in3k5_out1k5_50ms.py
@@ -125,8 +125,9 @@ class TestNPUQwen3_5_397B_A17B_3K5_1K5_50ms(TestNpuPerformanceTestCaseBase):
     tpot = 50
     output_token_throughput = 5415
     request_rate = float("inf")
-    temperature = 0.6
-    top_p = 0.95
+    # Disabled to work around DTS2026091033366; re-enable after the fix.
+    # temperature = 0.6
+    # top_p = 0.95
 
     def test_npu_qwen3_5_397b_a17b_3k5_1k5(self):
         """Run NPU performance test for Qwen3.5-397B-A17B in3k5 out1k5"""