Tcp ReTransmit and Bad CheckSum

[guidof]

Pogoplug pro with arm linux works for a while, up several hours and then begin to drop tcp connections: (Whatever services becam unreachable) with the following situation

$this->bbcode_second_pass_code('', ' Frame: Number = 96, Captured Frame Length = 75, MediaType = ETHERNET
+ Ethernet: Etype = Internet IP (IPv4),DestinationAddress:[00-06-4F-3A-5B-87],SourceAddress:[00-25-31-01-B6-CB]
+ Ipv4: Src = 192.168.1.15, Dest = 192.168.1.19, Next Protocol = TCP, Packet ID = 58208, Total IP Length = 61
- Tcp: [ReTransmit #85] [Bad CheckSum]Flags=...AP..., SrcPort=SSH(22), DstPort=3171, PayloadLen=21, Seq=3217692140 - 3217692161, Ack=1558792116, Win=1460 (scale factor 0x2) = 5840
SrcPort: SSH(22)
DstPort: 3171
SequenceNumber: 3217692140 (0xBFCA15EC)
AcknowledgementNumber: 1558792116 (0x5CE947B4)
+ DataOffset: 80 (0x50)
+ Flags: ...AP...
Window: 1460 (scale factor 0x2) = 5840
Checksum: 0x83A2, Bad
UrgentPointer: 0 (0x0)
RetransmitPayload: Binary Large Object (21 Bytes)
')