diff --git a/archinstall/lib/installer.py b/archinstall/lib/installer.py
index bf7d91ba..40049c53 100644
--- a/archinstall/lib/installer.py
+++ b/archinstall/lib/installer.py
@@ -131,6 +131,7 @@ class Installer:
 
 		self._zram_enabled = False
 		self._disable_fstrim = False
+		self._keyring_synced = True
 
 		self.pacman = Pacman(self.target, silent)
 
@@ -228,6 +229,10 @@ class Installer:
 			while self._service_state('archlinux-keyring-wkd-sync.service') not in ('dead', 'failed', 'exited'):
 				time.sleep(1)
 
+			if self._service_state('archlinux-keyring-wkd-sync.service') == 'failed':
+				self._keyring_synced = False
+				warn('archlinux-keyring-wkd-sync failed, custom mirror configuration will be skipped')
+
 	def _verify_boot_part(self) -> None:
 		"""
 		Check that mounted /boot device has at minimum size for installation
@@ -246,6 +251,10 @@ class Installer:
 					f'Please resize it to at least 200MiB and re-run the installation.',
 				)
 
+	@property
+	def keyring_synced(self) -> bool:
+		return self._keyring_synced
+
 	def sanity_check(
 		self,
 		offline: bool = False,
diff --git a/archinstall/scripts/guided.py b/archinstall/scripts/guided.py
index 6f484910..1355d18f 100644
--- a/archinstall/scripts/guided.py
+++ b/archinstall/scripts/guided.py
@@ -12,7 +12,7 @@ from archinstall.lib.disk.utils import disk_layouts
 from archinstall.lib.general.general_menu import PostInstallationAction, select_post_installation
 from archinstall.lib.global_menu import GlobalMenu
 from archinstall.lib.installer import Installer, accessibility_tools_in_use, run_custom_user_commands
-from archinstall.lib.log import debug, error, info
+from archinstall.lib.log import debug, error, info, warn
 from archinstall.lib.menu.util import delayed_warning
 from archinstall.lib.mirror.mirror_handler import MirrorListHandler
 from archinstall.lib.models import Bootloader
@@ -98,7 +98,10 @@ def perform_installation(
 				installation.generate_key_files()
 
 		if mirror_config := config.mirror_config:
-			installation.set_mirrors(mirror_list_handler, mirror_config, on_target=False)
+			if installation.keyring_synced:
+				installation.set_mirrors(mirror_list_handler, mirror_config, on_target=False)
+			else:
+				warn('Skipping custom mirror configuration due to keyring sync failure')
 
 		installation.minimal_installation(
 			optional_repositories=optional_repositories,
@@ -109,7 +112,10 @@ def perform_installation(
 		)
 
 		if mirror_config := config.mirror_config:
-			installation.set_mirrors(mirror_list_handler, mirror_config, on_target=True)
+			if installation.keyring_synced:
+				installation.set_mirrors(mirror_list_handler, mirror_config, on_target=True)
+			else:
+				warn('Skipping target mirror configuration due to keyring sync failure')
 
 		if config.swap and config.swap.enabled:
 			installation.setup_swap(algo=config.swap.algorithm)