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Frequent Contributor
Username: Alexd

Post Number: 179
Registered: 01-2008
Posted on Friday, August 12, 2011 - 12:48 pm:   

We noticed a strange behavior NowSMS (2011 07.05). While sending a message, it suddenly freezes (not sent or received messages).
With WireShark we saw that an error TCP Zero Window. The screenshot shows that the frame 284 window size = 12 864 in frame 286 = 502, in the 287 frame window size is equal to 12 864 again, but in a 288 frame window size = 0.

With what may be the reason? Operating system Windows 2003 x64, window sze value in the default (65535). Could this be due to the fact that NowSms can not properly parse (write in DB) deliver_sm package, and thus does not relieve the buffer?
screenshot of dump

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