Great Britain were unable to secure their place in the Billie Jean King Cup finals as Harriet Dart and Katie Swan lost the decisive doubles match against the Czech Republic.
With the best-of-five tie locked at 2-2, Czech pair Marketa Vondrousova and Karolina Muchova sealed victory with a 6-1 7-5 win on the Prague clay.
Earlier, Dart beat Linda Fruhvirtova 6-0 5-7 6-2 to keep the tie alive.
That came after British number one Emma Raducanu lost 6-1 6-1 to Vondrousova.
US Open champion Raducanu was unable to cope with 2019 French Open runner-up Vondrousova's excellent clay-court game and the 19-year-old Briton was also hampered by a blister on her foot.