VBA nested looping with do until loop - vba

Question

I need a looping structure that checks a range of cells, then if the cell and a cell that is in the range equal each other then the font should turn red. My problem is that my do until loop won't get entered. This is what I have right now.
`
Dim finalrow As Long
finalrow = Worksheets("Redundancy").Cells(Worksheets("Redundancy").Rows.Count, "D").End(xlUp).Row
Dim z As Long
Dim w As Long
Dim r As Long
w = 2
r = 0
For z = 2 To finalrow
If Range("L" & z) = Range("L" & z + 1) & Range("J" & z) <> Range("J" & z + 1) Then
Do Until Range("L" & z) = Range("L" & z + 1) & Range("J" & z) <> Range("J" & z + 1)
If Cells(w, 4) = Cells(z + 1, 4 + r) Then
Cells(w, 1).Font.ColorIndex = 3
Cells(z + 1, 1).Font.ColorIndex = 3
If r = 4 Then
w = w + 1
End If
End If
r = r + 1
Loop
End If
Next z
`
I changed it to this, but it exits the loop all together right when it is about to enter the do while loop.
`
For z = 2 To finalrow
Do While (Range("L" & z) = Range("L" & z + 1) And Range("J" & z) <> Range("J" & z + 1))
If Cells(w, 4) = Cells(z + 1, 4 + r) Then
Cells(w, 1).Font.ColorIndex = 3
Cells(z + 1, 1).Font.ColorIndex = 3
If r = 4 Then
w = w + 1
End If
End If
r = r + 1
Loop
Next z
`

Answer 1

If you do this;
Range("L" & z) = Range("L" & z + 1) and Range("J" & z) <> Range("J" & z + 1)
you are comparing Range objects. What you instead want to do is to compare the values in those range objects. So use this instead;
Range("L" & z).value = Range("L" & z + 1).value and Range("J" & z).value <> Range("J" & z + 1).value
However when you use the cells(row,column) you don't have this problem.
I am curious though, was it not possible to use conditional formatting instead?

Answer 2

Use the 'and' operator instead of '&'.