From ca098939704757fbdda73a3ff0240ba5e96ce1d5 Mon Sep 17 00:00:00 2001
From: Bryan Biedenkapp <gatekeep@gmail.com>
Date: Sat, 15 Mar 2025 23:55:18 -0400
Subject: [PATCH] payload flag should be set false for ACK block type DFSI
 messages;

---
 src/host/modem/ModemV24.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/host/modem/ModemV24.cpp b/src/host/modem/ModemV24.cpp
index d3b8527b..e7383bfa 100644
--- a/src/host/modem/ModemV24.cpp
+++ b/src/host/modem/ModemV24.cpp
@@ -1915,6 +1915,7 @@ void ModemV24::ackStartOfStreamTIA()
 
     // generate block header
     BlockHeader hdr = BlockHeader();
+    hdr.setPayloadType(false);
     hdr.setBlockType(BlockType::START_OF_STREAM_ACK);
     hdr.encode(buffer + 1U);
     length += BlockHeader::LENGTH;