diff --git a/src/inventory.rs b/src/inventory.rs
index 3e7cc97..ba839c5 100644
--- a/src/inventory.rs
+++ b/src/inventory.rs
@@ -12,8 +12,12 @@
 //! Get-CimInstance and emits compact JSON. One subprocess for the whole
 //! inventory is cheaper than per-field WMI queries and avoids pulling a
 //! `wmi`/COM crate into the dep tree. Inventory is collected once at
-//! startup; the sysinfo loop's hash-compare suppresses re-uploads of
-//! unchanged data, so this isn't repeated on every 120 s tick.
+//! startup. Collection routinely outruns the first sysinfo tick (TIME_CONN
+//! = 3 s) — `Invoke-RestMethod 'api.ipify.org' -TimeoutSec 5` alone can
+//! burn that budget on hosts with blocked egress — so the sysinfo loop in
+//! `hbbs_http::sync` watches for INVENTORY transitioning empty → populated
+//! and forces a re-upload at that point. Subsequent ticks are suppressed
+//! by the loop's `had_inventory` / `uploaded` bookkeeping.
 //!
 //! Non-Windows builds return an empty JSON object — hello-agent v0 only
 //! ships on Windows, but keeping the cross-platform surface compiling
diff --git a/vendor/rustdesk/src/hbbs_http/sync.rs b/vendor/rustdesk/src/hbbs_http/sync.rs
index 7cc5072..8243a76 100644
--- a/vendor/rustdesk/src/hbbs_http/sync.rs
+++ b/vendor/rustdesk/src/hbbs_http/sync.rs
@@ -57,6 +57,13 @@ struct InfoUploaded {
     last_uploaded: Option<Instant>,
     id: String,
     username: Option<String>,
+    // hello-agent local patch: tracks whether the most recent successful
+    // sysinfo upload carried the `inventory` key. The CMDB collector
+    // (hello-agent's `inventory.rs`) runs on a background thread and can
+    // finish *after* the first sysinfo tick has already fired; without
+    // this flag the loop would never re-upload because `uploaded == true`
+    // and `username` is unchanged. Re-apply on vendor resync.
+    had_inventory: bool,
 }
 
 impl Default for InfoUploaded {
@@ -67,18 +74,20 @@ impl Default for InfoUploaded {
             last_uploaded: None,
             id: "".to_owned(),
             username: None,
+            had_inventory: false,
         }
     }
 }
 
 impl InfoUploaded {
-    fn uploaded(url: String, id: String, username: String) -> Self {
+    fn uploaded(url: String, id: String, username: String, had_inventory: bool) -> Self {
         Self {
             uploaded: true,
             url,
             last_uploaded: None,
             id,
             username: Some(username),
+            had_inventory,
         }
     }
 }
@@ -126,9 +135,18 @@ async fn start_hbbs_sync_async() {
                 // we may not be able to get the username before login after the next restart.
                 let mut v = crate::get_sysinfo();
                 let sys_username = v["username"].as_str().unwrap_or_default().to_string();
+                // hello-agent local patch: the inventory collector is async
+                // (PowerShell + WMI + ipify, see `inventory::collect_inventory`)
+                // and routinely finishes after the first sysinfo tick. When
+                // INVENTORY transitions from empty → populated we need to
+                // re-upload, even though `uploaded == true` and the username
+                // hasn't changed. Re-apply on vendor resync.
+                let inventory_now_available = !config::INVENTORY.read().unwrap().is_empty();
                 // Though the username comparison is only necessary on Windows,
                 // we still keep the comparison on other platforms for consistency.
-                let need_upload = (!info_uploaded.uploaded || info_uploaded.username.as_ref() != Some(&sys_username)) &&
+                let need_upload = (!info_uploaded.uploaded
+                    || info_uploaded.username.as_ref() != Some(&sys_username)
+                    || (inventory_now_available && !info_uploaded.had_inventory)) &&
                     info_uploaded.last_uploaded.map(|x| x.elapsed() >= UPLOAD_SYSINFO_TIMEOUT).unwrap_or(true);
                 if need_upload {
                     v["version"] = json!(crate::VERSION);
@@ -158,9 +176,11 @@ async fn start_hbbs_sync_async() {
                     // the `inventory` key, identical to a vanilla rustdesk
                     // install.
                     let inventory = config::INVENTORY.read().unwrap().clone();
+                    let mut had_inventory = false;
                     if !inventory.is_empty() {
                         if let Ok(inv_v) = serde_json::from_str::<Value>(&inventory) {
                             v["inventory"] = inv_v;
+                            had_inventory = true;
                         }
                     }
                     let ab_name = Config::get_option(keys::OPTION_PRESET_ADDRESS_BOOK_NAME);
@@ -232,7 +252,7 @@ async fn start_hbbs_sync_async() {
                                 }
                             };
                             if samever {
-                                info_uploaded = InfoUploaded::uploaded(url.clone(), id.clone(), sys_username);
+                                info_uploaded = InfoUploaded::uploaded(url.clone(), id.clone(), sys_username, had_inventory);
                                 log::info!("sysinfo not changed, skip upload");
                                 continue;
                             }
@@ -241,7 +261,7 @@ async fn start_hbbs_sync_async() {
                     match crate::post_request(url.replace("heartbeat", "sysinfo"), v, "").await {
                         Ok(x)  => {
                             if x == "SYSINFO_UPDATED" {
-                                info_uploaded = InfoUploaded::uploaded(url.clone(), id.clone(), sys_username);
+                                info_uploaded = InfoUploaded::uploaded(url.clone(), id.clone(), sys_username, had_inventory);
                                 log::info!("sysinfo updated");
                                 if !hash.is_empty() {
                                     config::Status::set("sysinfo_hash", hash);