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Axel Lin wrote:
> Hi,
> I'm using netconn API.
> While testing lwIPv2.0.1, I found my device seems stuck after running
> for a couple minutes.
> 
> My device running lwIP (192.168.0.103) as a tcp client.
> A Linux laptop (192.168.0.104) running "netcat -l 8088" to receive data.
> 
> In my use case, it's one-direction data transfer as lwIP device
> sending data to the linux server.
> After running for a couple minutes, I got a lot "TCP Spurious
> Retransmission and TCP Dup ACK",
> then the transfer stuck and abort in the end.
> 
> Attached my wireshark log for reference. (I capture the log twice, the
> same symptom)
> 
> on log1, this issue begins from No. 44908.
> on log2, this issue begins from No. 19090.
> 
> Appreciate if someone can take a look at this.
> 
> Thanks,
> Axel
> 

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