connectivity stop between client and server

asked 2018-08-30 15:01:08 +0000

Sabah
1 ●3 ●1

Hi all,

My question is that I getting a lot of Retransmission packets with the connection between the client and Server. basically, I have a Client ( phone application installed on my cell phone) with IP address 10.1.100.28, and Server with IP address 10.1.100.200. Sometimes the connectivity stop between them. Does anyone have any idea why? Unfortunately, I don't have enough points to upload my Wireshark file, anybody have any idea how can I share my file.

Regards,

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You can share it via other online services such as Cloudshark, Google Drive, etc.

cmaynard ( 2018-08-30 15:59:28 +0000 )edit

Thanks you

Sabah ( 2018-08-30 23:19:59 +0000 )edit

Please check the link below for the packets

link text

Sabah ( 2018-08-30 23:21:01 +0000 )edit

Seems that the TSecr value does of the SYN ACK does not match the TSval of the SYN packet. See similiar problem here: https://osqa-ask.wireshark.org/questi...

Christian_R ( 2018-08-31 16:14:46 +0000 )edit

Hi, I don't think that same issue since the TSval of the first SYN matches the TSect of the SYN/ACK, but the client doesn't reply with ACK after the 3-way shake messages, but instead, it sent the RTO of the first SYN.

Sabah ( 2018-08-31 18:49:39 +0000 )edit

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Hi I don't think there is an issue with my wifi signal, I can ping between the client and server perfectly. the only thing that confuses me that the client doesn't reply to the server with ACK but reply with RTO of the SYN message, please check tcp.stream eq 2 and all of that happens after 3 to 5 min of turning the screen of my cell phone off.

Sabah ( 2018-08-31 18:45:12 +0000 )edit

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