ads运行出现的问题

前一阵子还好使用，昨天打开出现下面的情况
双击ads.exe弹出对话框说：the desired vendor daemon is down. check the imgrd log file，or try lmreread。
                                            feature：ads_schematic
                                            vendor：Hosting：20081206-1207
                                            license patch:27000@20081206-1207
                                            flexnet licensing error:-97,121
log文件显示如下：
16:16:54 (lmgrd) -----------------------------------------------
16:16:54 (lmgrd)   Please Note:
16:16:54 (lmgrd)
16:16:54 (lmgrd)   This log is intended for debug purposes only.
16:16:54 (lmgrd)   In order to capture accurate license
16:16:54 (lmgrd)   usage data into an organized repository,
16:16:54 (lmgrd)   please enable report logging. Use Macrovision's
16:16:54 (lmgrd)   software license administration  solution,
16:16:54 (lmgrd)   FLEXnet Manager, to  readily gain visibility
16:16:54 (lmgrd)   into license usage data and to create
16:16:54 (lmgrd)   insightful reports on critical information like
16:16:54 (lmgrd)   license availability and usage. FLEXnet Manager
16:16:54 (lmgrd)   can be fully automated to run these reports on
16:16:54 (lmgrd)   schedule and can be used to track license
16:16:54 (lmgrd)   servers and usage across a heterogeneous
16:16:54 (lmgrd)   network of servers including Windows NT, Linux
16:16:54 (lmgrd)   and UNIX. Contact Macrovision at
16:16:54 (lmgrd)   www.macrovision.com for more details on how to
16:16:54 (lmgrd)   obtain an evaluation copy of FLEXnet Manager
16:16:54 (lmgrd)   for your enterprise.
16:16:54 (lmgrd)
16:16:54 (lmgrd) -----------------------------------------------
16:16:54 (lmgrd)
16:16:54 (lmgrd)
16:16:54 (lmgrd) Failed to open the TCP port number in the license.