Failure to syn iphone 8 with outlook 2010 calender

Dear all,

I'm having trouble syn my outlook 2010 calendar with my iphone 8.

What I have done so far:

Backup Iphone

Update iphone to lastest ios

Update ITunes to lastest version

Select syn calendar with outlook through Itunes

Disable syn calendar on icould settings.

Apply & Syn

Still my meetings on my pc in outlook 2010 is not showing on my iphone.

What can I do?

Rgds

WA