Troubleshooting DNS resolution failures
If DNS resolution is failing, do the following:
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Verify the HTTP server address is correct.
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Verify the data logger is configured with DNS servers.
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If applicable, verify the data logger is connected to the same private network as the server address to which you are attempting to connect .
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If applicable, verify the data logger is connected to the Internet.
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Verify if the data logger is connected to multiple network interfaces and the traffic is being sent to the correct interface. See Instructions for sniffing HTTPPost(), HTTPPut(), and HTTPGet() from the terminal mode in Device Configuration Utility.
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Obtain alternative DNS servers from your local IT department and switch the data logger to those DNS server(s).
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Work with your local IT department to obtain the IP address associated with the server name. Use this IP address in your CRBasic program as a workaround instead of the server name.