I update Wireshark to the latest release. Same thing.
Looking at Wireshark after error message, the last frame displayed is always http:
2 2010-12-15 21:15:13.709145 172.16.1.205 192.168.1.101 HTTP Continuation or non-HTTP traffic
HTTP Continuation or non-HTTP traffic is always displayed in info field
The header is :
Frame 2: 1314 bytes on wire (10512 bits), 1314 bytes captured (10512 bits)
Ethernet II, Src: 00:0c:29:c5:2c:76 (00:0c:29:c5:2c:76), Dst: 00:50:04:48:f6:e0 (00:50:04:48:f6:e0)
Internet Protocol, Src: 172.16.1.205 (172.16.1.205), Dst: 192.168.1.101 (192.168.1.101)
Transmission Control Protocol, Src Port: http (80), Dst Port: dlms-cosem (4059), Seq: 1, Ack: 1, Len: 1260