diff --git a/infra/scripts/deploy-dev-to-prod.ps1 b/infra/scripts/deploy-dev-to-prod.ps1
index b65874e..25c1290 100644
--- a/infra/scripts/deploy-dev-to-prod.ps1
+++ b/infra/scripts/deploy-dev-to-prod.ps1
@@ -247,12 +247,14 @@ if (Get-StepEnabled $steps 'validateBuild') {
         $code = Invoke-Npm 'prod:build'
         if ($code -ne 0) { return $code }
 
+        # Always prefer the dev host on LAN (192.168.10.70) because the HTTPS dev domain
+        # can return transient 504 HTML pages during load.
         $devCandidates = @()
+        if ($cfg.verify.devLanUrl) { $devCandidates += $cfg.verify.devLanUrl }
+        $devCandidates += 'http://192.168.10.70:5173/api/bounds'
         if ($cfg.verify.lanUrl) { $devCandidates += $cfg.verify.lanUrl }
-        if ($cfg.verify.devUrl -and ($devCandidates -notcontains $cfg.verify.devUrl)) { $devCandidates += $cfg.verify.devUrl }
-        if (-not $devCandidates -or $devCandidates.Count -eq 0) {
-            $devCandidates = @('https://devgallery.mysuperlab.netcraze.pro/api/bounds')
-        }
+        if ($cfg.verify.devUrl) { $devCandidates += $cfg.verify.devUrl }
+        $devCandidates = $devCandidates | Select-Object -Unique
 
         $devOk = $false
         foreach ($u in $devCandidates) {