First & Second Instances has to be counted based on multiple conditions

Dear All,

I have a devices related data, and in that need to find the First & Seconds instances of Support Start. I tried many ways and searched on the net for solution but couldn't find the answer.

First Instance = 

        COUNTROWS ( 
        FILTER (
            Sheet1,
            Sheet1[IPAM_Code] = EARLIER(Sheet1[IPAM_Code]) &&
            Sheet1[Network_Function] = EARLIER(Sheet1[Network_Function]) &&
            Sheet1[Hostname] = EARLIER(Sheet1[Hostname]) &&
            Sheet1[Site_Metal_Rating] = EARLIER(Sheet1[Site_Metal_Rating]) &&
            Sheet1[Serial] = EARLIER(Sheet1[Serial]) &&
            Sheet1[Start of Support].[Date] = EARLIER ( Sheet1[Start of Support].[Date] )
        )
    ) = 1

First Instance = 
IF (
    Sheet1[Start of Support]
        = MINX (
            FILTER (
                Sheet1,
                EARLIER ( Sheet1[Network_Function] ) = "Access Switch"
                    && Sheet1[IPAM_Code] = EARLIER ( Sheet1[IPAM_Code] )
            ),
            Sheet1[Start of Support]
        ),
    1
)

In first DAX formula, it is giving True for all the instances, however, in 2nd DAX, all Access Switch devices are not been included, not sure why.

Kindly have a look at the data, I have to include all the columns which may be more as this is sample data because filter can be applied. IPAM Code is the Unique Field by which First & Second instance is required.

Please help me in this as stuck from whole 1 day now and has to deliver the report by EOD today.