请帮我分析下为什么ac和云简的tcp连接有这么多的错误？

<WX3520H>dis tcp verbose

Location: slot 1

 NSR standby: N/A

 Creator: portald[409]

 State: ISDISCONNECTED

 Options: SO_KEEPALIVE SO_NOSIGPIPE SO_KEEPALIVETIME

 Error: 145

 Receiving buffer(cc/hiwat/lowat/drop/state): 0 / 65340 / 1 / 0 / CANTRCVMORE CANTREDUCESIZE

 Sending buffer(cc/hiwat/lowat/state): 0 / 63888 / 512 / CANTSENDMORE

 Type: 1

 Protocol: 6

 Connection info: Src = 172.16.1.18:0, Dst = 101.36.161.146:80

 Inpcb flags: INP_ANONPORT INP_SYNCPCB

 Inpcb extflag: N/A

 Inpcb vflag: INP_IPV4 INP_DROPPED

 TTL: 255(minimum TTL: 0)

 Connection state: CLOSED

 TCP options: TF_REQ_SCALE TF_RCVD_SCALE TF_REQ_TSTMP TF_SACK_PERMIT

 NSR state: CLOSED(M)

 Send VRF: 0x0

 Receive VRF: 0x0

针对上述信息能看出什么问题？