Error 621 Cannot open the phone book file Error 622 Cannot load the phone book file Error 623 Cannot find the phone book entry Error 624 Cannot write the phone book file Error 625 Invalid information found in the phone book 问题:Windows NT或者Windows 2000 Server网络RAS网络组件故障。 原因:卸载所有PPPoE软件,重新安装RAS网络组件和RasPPPoE。