diff --git a/ProxyChannel.cxx b/ProxyChannel.cxx
index 32cfc745..511a6082 100644
--- a/ProxyChannel.cxx
+++ b/ProxyChannel.cxx
@@ -15201,7 +15201,10 @@ TLSCallSignalSocket::TLSCallSignalSocket(CallSignalSocket * s, WORD port) : Call
 TLSCallSignalSocket::~TLSCallSignalSocket()
 {
 	if (m_ssl) {
-		SSL_shutdown(m_ssl);
+        ::shutdown(GetHandle(), SHUT_WR);
+		// don't call SSL_shutdown here, it will end other connections from the same parent context
+		// not sure why, but it does
+		//SSL_shutdown(m_ssl);
 		SSL_free(m_ssl);
 		m_ssl = NULL;
 	}
diff --git a/changes.txt b/changes.txt
index 9b57bfec..b1908046 100644
--- a/changes.txt
+++ b/changes.txt
@@ -1,5 +1,6 @@
 Changes from 5.2 to 5.3
 =======================
+- BUGFIX(ProxyChannel.cxx) fix hangup when making many TLS calls quickly one after another
 - BUGFIX(RasSrv.cxx) don't require H.460.22 parameters in ARQs
 - BUGFIX(ProxyChannel.cxx) fix TLS without LARGE_FDSET
 - BUGFIX(ProxyChannel.cxx) don't send H.460.22 priority field in SCI