RE: TCP sequence numbers.

I don't think I'm interpreting the sequence numbers correctly, so my previous post is probably not valid. 
 

 What is happening though, is that about every 10-seconds the Rabbit is resetting it's connection with the client. The client then reconnects successfully, and normal communication continues for another 10-15 seconds, at which time the Rabbit abruptly resets the connection again. This continues for days until finally the client is not able to reconnect again. And the only way to be able to connect to the Rabbit is to move the Ethernet cable to another port on the switch. 
 

 The other observation I have is that there are a lot of Gratuitous ARPs being issued by the client. And according to the Wireshark wiki, that can be an indication of faulty cabling or hardware. 
 

 I'm suspecting the switch. We saw something like this a while back with a customer using a Dell switch. Over time the Rabbit would eventually just lose its connection. If we put a Netgear switch between the Dell and the Rabbit, the problem went away. We have never seen this phenomena with Netgear, or D-Link switches, which are what we use.
 

 If someone can think of something I can look at or check to get the bottom of this, I'd appreciate it.
 

 Steve
 

 

 

 

 

 Steve