Error 56 Occurs When Using TCP Read.vi
TCP Read gives Error 56: The network operation exceeded the user-specified or system time
limit?
TCP Read in my application in not reliable. It works sometime, but it fails some other time. I tried to read just 1 byte, and set time out to be 1 min, I still get error code 56. What could cause this problem?
Most of the time it is due to a poor implementation of TCP-IP and the protocol implementation ontop of that.
There can be several causes.
Once the device we talked to could not handle the network traffic, resulting in several TCP-IP retries (part of TCP-IP) and showing the result only after minutes. There was loads of traffic on the network and the device was overloaded with traffic it shouldn't even been listing to. Solution was a router.
It could just as easily be something else.
Please post a screenshot or code snippet that shows your implementation and we can give you pointers.
André
Regards,
André
Using whatever version of LV the customer requires. (LV5.1-LV2012) (www.carya.nl)
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