Using cell references for autoshape line - vba

Question

Have a sheet with a list of Cell references in two columns.
Trying to create a macro that pulls these into a range and uses the first cell in column A for the start point of an autoshape line and the second cell in column B as the end point of an autoshape line.
The script is working and doing what I want it to however at the end of execution I am getting "Subscript out of range error"
What am I doing wrong?
rng = Range("A1:B100")
Worksheets("Map").Activate
For Each row In rng
i = i + 1
ActiveSheet.Shapes.AddConnector(msoConnectorStraight, Range(rng(i, 1)).Left, Range(rng(i, 1)).Top, Range(rng(i, 2)).Left, Range(rng(i, 2)).Top).Select
Next row

Answer 1

Avoid select and activate, declare all the variables and loop only from the rows of the range:
Sub TestMe()
Dim rng As Range
Set rng = Worksheets("Map").Range("A1:B100")
Dim row As Range
Dim i As Long
For Each row In rng.Rows
i = i + 1
Worksheets("Map").Shapes.AddConnector msoConnectorStraight, _
row.Cells(i, 1).Left, _
row.Cells(i, 1).Top, _
row.Cells(i, 2).Left, _
row.Cells(i, 2).Top
Next row
End Sub
How to avoid using Select in Excel VBA

Answer 2

The Range("A1:B100") has no connection to Worksheets("Map") beyond a possible coincidence that Worksheets("Map") was the active worksheet. Provide proper parent worksheet reference.
You Set objects like ranges to their vars.
Don't Select the connectors you create; not in a loop, not ever.
with Worksheets("Map")
set rng = .Range("A1:B100")
For Each row In rng
i = i + 1
.Shapes.AddConnector msoConnectorStraight, _
.Range(rng(i, 1)).Left, .Range(rng(i, 1)).Top, _
.Range(rng(i, 2)).Left, .Range(rng(i, 2)).Top
Next row
end with