  The Higgsless model in warped extra dimension is reexamined. Dirichlet
boundary conditions on the TeV brane are replaced with Robin boundary
conditions which are parameterized by a mass parameter $M$. We calculate the
Peskin-Takeuchi precision parameters $S$, $T$ and $U$ at tree level. We find
that to satisfy the constraints on the precision parameters at $99 \%$ [$95
\%$] confidence level (CL) the first Kaluza-Klein excited $Z$ boson, $Z'$,
should be heavier than 5 TeV [8 TeV]. The Magnitude of $M$, which is infinitely
large in the original model, should be smaller than 200 GeV (70 GeV) for the
curvature of the warped space $R^{-1}=10^{16}$ GeV ($10^{8}$ GeV) at $95\%$ CL.
If the Robin boundary conditions are induced by the mass terms localized on the
TeV brane, from the $99\%$ [$95\%$] bound we find that the brane mass
interactions account for more than $97\%$ [$99\%$] of the masses of $Z$ and $W$
bosons. Such a brane mass term is naturally interpreted as a vacuum expectation
value of the Higgs scalar field in the standard model localized on the TeV
brane. If so, the model can be tested by precise measurements of $HWW$, $HZZ$
couplings and search for 1st Kaluza-Klein excited states.
