Great Britain's hopes of earning promotion in the Fed Cup ended after Katie Swan and Heather Watson both lost against Belgium.
Swan, 16, was beaten 6-3 3-6 6-3 by Ysaline Bonaventure in the opening rubber of the best-of-three tie.
Watson, 23, then lost 6-4 3-6 6-4 to Alison van Uytvanck as Belgium took an unassailable 2-0 lead in the Group 1 promotion play-off in Eilat, Israel.
The doubles match later will have no bearing on the overall outcome.
Judy Murray's squad beat South Africa and Georgia this week to reach the Group 1 play-off.