N2 CoreELEC Will Not Boot to HP ZR22w Monitor

Is there any reason why N2 CoreELEC won’t boot to a 1920x1080 computer monitor?

I bought a Display Port to HDMI adapter so I could connect N2 to my computer display and use the ethernet internet connection at my desk, but I get no image.
HDMI is same cable I use with HDTV with no problem.
I can’t troubleshoot adapter because I have no other display port devices.
Only a wireless connection for the N2 would solve the problem, but I have no idea which one and don’t want to do trial error, spend $, buy something else, something else, spend more $, and even more $.
The whole idea was to get a good media player for under $100 instead of wasting money on junk under $50.

Which Odroid wireless module works best?
Module 0, 3, 4, 5A or 4 (802.11a/b/g/n Dual Band)?

What specs on wireless module must I check to make sure it will work with my router?
I have Cisco Linksys E1200.

shouldn’t it be a HDMI to DP Adapter?
This would require an active converter, e.g https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Resolution/dp/B00JQORLCG
Not the passive DP to HDMI ones you can buy for 5Euros…

Yeah, it didn’t work, so what about . . .

Which Odroid wireless module works best?
Module 0, 3, 4, 5A or 4 (802.11a/b/g/n Dual Band)?

What specs on wireless module must I check to make sure it will work with my router?
I have Cisco Linksys E1200.

5A is the latest and what I would recommend getting.