S5800-56C SSH登录失败

有相关配置吗？

<ZQ-8E-24-ACC-H5800> *Jun 21 11:12:56:826 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Accept: Socket:5 LineIndex:29,IP:172.30.50.133 *Jun 21 11:12:56:976 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Accept: SSH user has logged-in from 172.30.50.133, current FSM is SSH_Main_Connect *Jun 21 11:12:57:176 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_MESSAGE: VTY[0]:SSH2 Version: Send Message:SSH_VERSION_SEND from SocketID 5 *Jun 21 11:12:57:347 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Send Version To Client: Successful to send version string: SSH-1.99-Comware-5.20 *Jun 21 11:12:57:542 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:FSM Change: From SSH_Main_Connect to SSH_Main_VersionMatch. *Jun 21 11:12:57:723 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Read: Process user [] from 172.30.50.133. *Jun 21 11:12:57:863 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_MESSAGE: VTY[0]:VersionReceived: Received VersionString: SSH-2.0-SecureCRT_6.2.3 (build 313) SecureCRT *Jun 21 11:12:58:063 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Read: Cut connect with user [] from 172.30.50.133 *Jun 21 11:12:58:214 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Server Disconnect: FSM from SSH_Main_VersionMatch(SSH_Sub1_KEX_Init)(SSH_Sub2_Service_Acc) to SSH_Main_Disconnect. *Jun 21 11:12:58:454 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_MESSAGE: VTY[0]:Server Disconnect: Send SSH2_MSG_DISCONNECT(1) from 172.30.251.6 to 172.30.50.133. *Jun 21 11:12:58:654 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Read: Process user [] from 172.30.50.133. *Jun 21 11:12:58:795 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Read: Cut connect with user [] from 172.30.50.133 *Jun 21 11:13:00:244 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Accept: Socket:5 LineIndex:29,IP:172.30.50.133 *Jun 21 11:13:00:394 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Accept: SSH user has logged-in from 172.30.50.133, current FSM is SSH_Main_Connect *Jun 21 11:13:00:594 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_MESSAGE: VTY[0]:SSH2 Version: Send Message:SSH_VERSION_SEND from SocketID 5 *Jun 21 11:13:00:765 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Send Version To Client: Successful to send version string: SSH-1.99-Comware-5.20 *Jun 21 11:13:00:965 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:FSM Change: From SSH_Main_Connect to SSH_Main_VersionMatch. *Jun 21 11:13:01:136 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Read: Process user [] from 172.30.50.133. *Jun 21 11:13:01:276 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_MESSAGE: VTY[0]:VersionReceived: Received VersionString: SSH-2.0-SecureCRT_6.2.3 (build 313) SecureCRT *Jun 21 11:13:01:486 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Read: Cut connect with user [] from 172.30.50.133 *Jun 21 11:13:01:637 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_EVENT: VTY[0]:Server Disconnect: FSM from SSH_Main_VersionMatch(SSH_Sub1_KEX_Init)(SSH_Sub2_Service_Acc) to SSH_Main_Disconnect. *Jun 21 11:13:01:877 2018 ZQ-8E-24-ACC-H5800 SSH/7/Server_MESSAGE: VTY[0]:Server Disconnect: Send SSH2_MSG_DISCONNECT(1) from 172.30.251.6 to 172.30.50.133. <ZQ-8E-24-ACC-H5800> <ZQ-8E-24-ACC-H5800> <ZQ-8E-24-ACC-H5800>dis cu