Index: src/OFHTTPClient.m
==================================================================
--- src/OFHTTPClient.m
+++ src/OFHTTPClient.m
@@ -126,17 +126,11 @@
 	if (_atEndOfStream) {
 		OFReadFailedException *e;
 
 		e = [OFReadFailedException exceptionWithStream: self
 					       requestedLength: length];
-
-#ifndef _WIN32
 		e->_errNo = ENOTCONN;
-#else
-		e->_errNo = WSAENOTCONN;
-#endif
-
 		@throw e;
 	}
 
 	if (!_hasContentLength && !_chunked)
 		return [_socket readIntoBuffer: buffer
@@ -435,14 +429,13 @@
 	[requestString appendString: @"\r\n"];
 
 	@try {
 		[socket writeString: requestString];
 	} @catch (OFWriteFailedException *e) {
-		/* Reconnect in case a keep-alive connection timed out */
-		socket = [self OF_createSocketForRequest: request];
-		[socket writeString: requestString];
-	} @catch (OFNotConnectedException *e) {
+		if ([e errNo] != ECONNRESET && [e errNo] != EPIPE)
+			@throw e;
+
 		/* Reconnect in case a keep-alive connection timed out */
 		socket = [self OF_createSocketForRequest: request];
 		[socket writeString: requestString];
 	}
 

Index: src/OFStreamSocket.m
==================================================================
--- src/OFStreamSocket.m
+++ src/OFStreamSocket.m
@@ -95,16 +95,11 @@
 	if (_atEndOfStream) {
 		OFReadFailedException *e;
 
 		e = [OFReadFailedException exceptionWithStream: self
 					       requestedLength: length];
-#ifndef _WIN32
 		e->_errNo = ENOTCONN;
-#else
-		e->_errNo = WSAENOTCONN;
-#endif
-
 		@throw e;
 	}
 
 	if ((ret = recv(_socket, buffer, length, 0)) < 0)
 		@throw [OFReadFailedException exceptionWithStream: self
@@ -125,16 +120,11 @@
 	if (_atEndOfStream) {
 		OFWriteFailedException *e;
 
 		e = [OFWriteFailedException exceptionWithStream: self
 						requestedLength: length];
-#ifndef _WIN32
 		e->_errNo = ENOTCONN;
-#else
-		e->_errNo = WSAENOTCONN;
-#endif
-
 		@throw e;
 	}
 
 	if (send(_socket, buffer, length, 0) < length)
 		@throw [OFWriteFailedException exceptionWithStream: self