diff --git a/csaxs_bec/bec_ipython_client/plugins/LamNI/lamni.py b/csaxs_bec/bec_ipython_client/plugins/LamNI/lamni.py
index 7f8c6640..7a88df3e 100644
--- a/csaxs_bec/bec_ipython_client/plugins/LamNI/lamni.py
+++ b/csaxs_bec/bec_ipython_client/plugins/LamNI/lamni.py
@@ -251,12 +251,7 @@ class LamNI(TomoQueueMixin, LamNIAlignmentMixin, LamNIOpticsMixin, LamniGuiTools
         self._webpage_gen = LamniWebpageGenerator(
             bec_client=client,
             output_dir="~/data/raw/webpage/",
-            upload_url=[
-                "https://v1p0zyg2w9n2k9c1.myfritz.net/upload.php",
-                # TEMP: mirroring to the test server while it's evaluated --
-                # drop this line once omny-test.psi.ch is confirmed or the trial ends.
-                "https://omny-test.psi.ch/upload.php",
-            ],
+            upload_url="https://omny.psi.ch/upload.php",
             local_port=8080,
         )
         self._webpage_gen.start()
diff --git a/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/AI_docs/WEBPAGE_UPLOAD_MECHANISM.md b/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/AI_docs/WEBPAGE_UPLOAD_MECHANISM.md
index 268a6cc0..6cef21de 100644
--- a/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/AI_docs/WEBPAGE_UPLOAD_MECHANISM.md
+++ b/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/AI_docs/WEBPAGE_UPLOAD_MECHANISM.md
@@ -74,10 +74,10 @@ are derived only from the *first/primary* URL, even when `upload_url` is a list
 govern access control for the production page and have no meaning for a secondary/test
 mirror.
 
-As of 2026-07, both `flomni.py` and `lamni.py` pass a two-element list -- production
-(`https://v1p0zyg2w9n2k9c1.myfritz.net/upload.php`) plus a temporary evaluation target
-(`https://omny-test.psi.ch/upload.php`) -- marked with a `# TEMP` comment at the call
-site. Drop the second entry once the trial ends.
+As of 2026-08, both `flomni.py` and `lamni.py` pass a single URL,
+`https://omny.psi.ch/upload.php` -- the earlier two-element list (production
+`v1p0zyg2w9n2k9c1.myfritz.net` plus the `omny-test.psi.ch` evaluation mirror) has been
+retired; omny.psi.ch is now the only webpage-mirror target.
 
 ## Call-site map (`webpage_generator_base.py`)
 
@@ -96,15 +96,20 @@ site. Drop the second entry once the trial ends.
 `force=True`) suppresses **all** uploads regardless of how many URLs are configured --
 it's a binary "upload at all vs. not" switch, orthogonal to how many mirrors exist.
 
-## Known issue: `.svg` upload failing on `omny-test.psi.ch`
+## Known issues on `omny.psi.ch` (as of 2026-08)
 
-Both the live `HttpUploader._UPLOAD_SUFFIXES` and the in-repo reference
-`OMNY_shared/server_side/webserver/upload.php` already allow `.svg`. Manual testing
-against `omny-test.psi.ch` showed `.json`/`.html` status updates succeeding but `.svg`
-(the EPS synoptic image, generated by `OMNY_shared/eps/eps_synoptic_svg.py`) failing.
-Since nothing in this repo's client or reference server code excludes `.svg`, the most
-likely cause is whatever `upload.php`/WAF is actually deployed on the test box differing
-from the reference copy here (a stricter filename regex, or a WAF rule flagging SVG's
-potential for embedded `<script>` content). This is a server-side configuration question
-for the test box, not a client bug -- follow up there before assuming a code fix is
-needed.
+1. `/upload.php` reaches the app but `move_uploaded_file()` fails with a
+   `Permission denied` writing to `/var/www/omny/` -- the web server process lacks write
+   permission on that directory. Confirmed reproducible from the production network
+   (129.129.122.0/24). Reported to PSI admins; blocks the webpage mirror entirely until
+   fixed server-side, not a client bug.
+2. An F5 WAF in front of omny.psi.ch intermittently rejects requests (a generic "Request
+   Rejected" block page) instead of passing them through to the app -- seen on
+   `/upload.php` and the `/samples/*` endpoints, but inconsistently: identical requests
+   from the same client sometimes succeed and sometimes don't, suggesting uneven WAF
+   policy across a load-balanced node pool rather than a fixed per-path block. Also
+   reported to PSI admins (network@psi.ch), with an F5 support ID from one rejected
+   request for reference.
+
+(The older `.svg`-specific upload failure noted on `omny-test.psi.ch` was observed on a
+host this system no longer targets and hasn't been re-verified against omny.psi.ch.)
diff --git a/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/omny_general_tools.py b/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/omny_general_tools.py
index a93600da..218105fa 100644
--- a/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/omny_general_tools.py
+++ b/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/omny_general_tools.py
@@ -347,8 +347,8 @@ class TomoIDManager:
         )
     """
 
-    OMNY_URL = "https://v1p0zyg2w9n2k9c1.myfritz.net/samples/newmeasurement.php"
-    TEST_OMNY_URL = "https://omny-test.psi.ch/samples/newmeasurement.php"
+    OMNY_URL = "https://omny.psi.ch/samples/newmeasurement.php"
+    TEST_OMNY_URL = "https://omny.psi.ch/samples/newmeasurement.php"
     FALLBACK_TOMO_ID = 0
 
     @staticmethod
diff --git a/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/tomo_queue_mixin.py b/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/tomo_queue_mixin.py
index 6a0f9cb5..927c546a 100644
--- a/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/tomo_queue_mixin.py
+++ b/csaxs_bec/bec_ipython_client/plugins/OMNY_shared/tomo_queue_mixin.py
@@ -392,12 +392,10 @@ class TomoQueueMixin:
             user=user,
         )
 
-    # Only omny-test.psi.ch, not v1p0zyg2w9n2k9c1.myfritz.net (the host
-    # TomoIDManager.OMNY_URL registers measurements against, and the
-    # webpage generators mirror their own content to): only
-    # omny-test.psi.ch has the sample counter that actually matches
-    # self.tomo_id.
-    _SAMPLES_UPLOAD_HOSTS = ("https://omny-test.psi.ch",)
+    # Must match whatever host TomoIDManager.OMNY_URL/TEST_OMNY_URL
+    # registered against, since that host's sample counter is what
+    # self.tomo_id came from.
+    _SAMPLES_UPLOAD_HOSTS = ("https://omny.psi.ch",)
 
     def _upload_pdf_report_to_samples(self, pdf_path: str) -> None:
         """Upload a just-written PDF report to the OMNY samples web folder
diff --git a/csaxs_bec/bec_ipython_client/plugins/flomni/flomni.py b/csaxs_bec/bec_ipython_client/plugins/flomni/flomni.py
index 062631f4..86c2499c 100644
--- a/csaxs_bec/bec_ipython_client/plugins/flomni/flomni.py
+++ b/csaxs_bec/bec_ipython_client/plugins/flomni/flomni.py
@@ -1640,13 +1640,7 @@ class Flomni(
         self._webpage_gen = FlomniWebpageGenerator(
             bec_client=client,
             output_dir="~/data/raw/webpage/",
-            # upload_url="http://s1090968537.online.de/upload.php",   # optional
-            upload_url=[
-                "https://v1p0zyg2w9n2k9c1.myfritz.net/upload.php",
-                # TEMP: mirroring to the test server while it's evaluated --
-                # drop this line once omny-test.psi.ch is confirmed or the trial ends.
-                "https://omny-test.psi.ch/upload.php",
-            ],
+            upload_url="https://omny.psi.ch/upload.php",
             local_port=8080,
         )
         self._webpage_gen.start()