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CC3235MODASF: No dns request sent

Part Number: CC3235MODASF

Hi,

We have some issue with dns caching in the cc3235.

We can see using wireshark that the device does a DNS request at power on when SlNetUtil_getHostByName in httpClient is called. However the calls done in all following hibernate exit do not do any dns request. In both case SlNetUtil_getHostByName is called and returns the same ip.

See capture, first highlight is power on, second highlight is after a short hibernate. 

Is there some caching mechanism? How can we force it to do a dns request?

See wireshark capture:

https://roomziodevops.blob.core.windows.net/public/wireshark_no_dns_after_hibernate.pcapng

Last sdk and service pack.