Thanks for the response/answer. Point is that the ISY994i 1s an extension of my Home Assistant setup, and so the portal was never used for external access to the UD controller. The external access I need is via the means supplied by Home Assistant, and the ISY994i controller does not need external access. The integrations mentioned are also available through Home Assistant. As long as the local devices continue to function, all remains good.
Cheap or not, I don't find a use for the portal, and even at $40/year, it's an expense I can eliminate.
Living on a retired person's budget forces one to look at all expenses.