Q: wifi connects then disconnects then searches for network

Hi bobmyron,

Thanks for using Apple Support Communities. Based on what you stated, it sounds like the Mac will connect and disconnect from two different networks. I would recommend that you read these articles, they may be helpful in troubleshooting your issue.

Wi-Fi Quick Assist - Apple Support

Wi-Fi and Bluetooth: Potential sources of wireless interference - Apple Support

Recommended settings for Wi-Fi routers and access points - Apple Support

Cheers,

Mario