diff --git a/reflector/DVFramePacket.cpp b/reflector/DVFramePacket.cpp
index c4a37c5..d8fcaf8 100644
--- a/reflector/DVFramePacket.cpp
+++ b/reflector/DVFramePacket.cpp
@@ -146,9 +146,9 @@ void CDvFramePacket::EncodeInterlinkPacket(CBuffer &buf) const
 	buf.resize(GetNetworkSize());
 	auto data = buf.data();
 	auto off = CPacket::GetNetworkSize();
-	data[off++] = (m_TCPack.sequence / 0x1000000u) & 0xffu;
-	data[off++] = (m_TCPack.sequence / 0x10000u) & 0xffu;
-	data[off++] = (m_TCPack.sequence / 0x100u) & 0xffu;
+	data[off++] = (m_TCPack.sequence >> 24) & 0xffu;
+	data[off++] = (m_TCPack.sequence >> 16) & 0xffu;
+	data[off++] = (m_TCPack.sequence >>  8) & 0xffu;
 	data[off++] = m_TCPack.sequence & 0xffu;
 	memcpy(data+off, m_uiDvData,      3); off += 3;
 	memcpy(data+off, m_uiDvSync,      7); off += 7;
diff --git a/reflector/Packet.cpp b/reflector/Packet.cpp
index 8efbd01..e7909d4 100644
--- a/reflector/Packet.cpp
+++ b/reflector/Packet.cpp
@@ -75,10 +75,10 @@ void CPacket::EncodeInterlinkPacket(const char *magic, CBuffer &buf) const
 	data[7]  = m_cModule;
 	data[8]  = m_uiStreamId / 0x100u;
 	data[9]  = m_uiStreamId % 0x100u;
-	data[10] = (m_uiM17FrameNumber / 0x1000000u) % 0x100u;
-	data[11] = (m_uiM17FrameNumber / 0x10000u) % 0x100u;
-	data[12] = (m_uiM17FrameNumber / 0x100u) % 0x100u;
-	data[13] = m_uiM17FrameNumber % 100u;
+	data[10] = (m_uiM17FrameNumber >> 24) & 0xffu;
+	data[11] = (m_uiM17FrameNumber >> 16) & 0xffu;
+	data[12] = (m_uiM17FrameNumber >>  8) & 0xffu;
+	data[13] = m_uiM17FrameNumber & 0xffu;
 	data[14] = m_uiDstarPacketId;
 	data[15] = m_uiDmrPacketId;
 	data[16] = m_uiDmrPacketSubid;