I'm trying to fill a form (you can see it here) via VBA controlling IE.
The problem is that after I manage to fill the textboxes with the values and click on "Neste", the values inserted get forgotten.
You can use IE consol with these commands to see the problem:
document.getElementById("Leilighet").click()
document.getElementsByName("opprinneligByggeAar")[0].value = "1985"
document.getElementsByName("boligensAreal")[0].value = "75"
document.getElementsByClassName("button")[0].click()
This is the VBA code I use so far:
Sub DoIt()
    Dim IE As Object, element1, Rmax As Long, T as Integer, T2 as Integer
    Set IE = CreateObject("InternetExplorer.Application")
    IE.Visible = 1
            T2 = Timer
Rfrsh:
            IE.navigate "https://www.skatteetaten.no/person/skatt/hjelp-til-riktig-skatt/bolig-og-eiendeler/bolig-eiendom-tomt/formuesverdi/boligverdikalkulator/"
            T = Timer
            Do While IE.readystate <> 4 Or IE.busy
XEL:         If Timer - T > 15 Then GoTo Rfrsh
                If Timer - T2 > 50 Then GoTo NoNet
                DoEvents
            Loop
            IE.document.getElementByID(Cells(3, 2)).Click  '.Checked = True
            IE.document.getElementsByName("opprinneligByggeAar").Item(0).Value = "1985"
            IE.document.getElementsByName("boligensAreal").Item(0).Value = "75"
            Set element1 = IE.document.getElementsByClassName("button")
            For Each element1 In element1
                If element1.innertext = "Neste" Then
                    element1.Click
                End If
            Next
     Msgbox "Done!"
NoNet:
ex:
    IE.Quit
    Set IE = Nothing
    Set element1 = Nothing
End Sub
Additional info:
The same problem existed when I used ".Checked = True" (shown in bold in the code) to check the radio button. And I could avoid that by clicking it instead.

Can the reason be related to the validation? And that the validation occurs only after a click or something? I tried clicking on the textboxes after filling them and I got the same result.

Thank you in advance & many thanks to everyone who helps others. This site helped me many many times.