T chainedResponse = null;
            if ( ! ( request instanceof SmbComTreeDisconnect ) && ! ( request instanceof Smb2TreeDisconnectRequest ) ) {
                chainedResponse = treeConnect(request, response);
            }
            if ( request == null || ( chainedResponse != null && chainedResponse.isReceived() ) ) {
                return chainedResponse;
            }

        if (tree.inDomainDfs) {
            tree.connectionState = 2;
        }

        try {
            if( log.level >= 3 )
                log.println( "doConnect: " + addr );

            tree.treeConnect(null, null);
        } catch (SmbAuthException sae) {
            NtlmPasswordAuthentication a;
            SmbSession ssn;

            if (share == null) { // IPC$ - try "anonymous" credentials

                // referrals.
                try ( SmbTreeHandleImpl th = ensureTreeConnected() ) {
                    if ( this.fileLocator.getType() == TYPE_SHARE ) {
                        // treeConnect is good enough, but we need to do this after resolving DFS
                        try ( SmbTreeHandleImpl th2 = ensureTreeConnected() ) {}
                    }
                    else {