Cisco Aironet 1702I-E Access Point Support Refuses to Help

I need assistance with a Cisco Aironet Air-Cap 1702I-E access point that I purchased from an individual online. The seller keeps telling me to "contact Cisco." When I reach Cisco Technical Support and ask, "Which port should I connect the network cable to?" they tell me to "find a local partner who can assist you." However, I cannot find anyone willing to help through their local partner network either. I urgently request a response and assistance in resolving this issue.