diff --git a/guides/troubleshooting/502error.md b/guides/troubleshooting/502error.md
new file mode 100644
index 000000000..64eec6d56
--- /dev/null
+++ b/guides/troubleshooting/502error.md
@@ -0,0 +1,30 @@
+---
+title: "TypeError: Failed to fetch"
+description: Learn how to resolve TypeError issues.
+---
+
+When using Coder, you may encounter this error when loading a workspace:
+
+```console
+Failed to fetch applications!
+TypeError: Failed to fetch
+```
+
+## Why this happens
+
+This is a WebSocket error that occurs when network traffic attempts to access
+the applications endpoint.
+
+## Troubleshooting Steps
+
+- Ensure your Coder access URL is set to `https://your-coder-domain.com`.
+
+  You can verify your access URL by going to **Admin** > **Infrastructure** >
+  **Access URL**.
+
+- Set `envproxy.accessURL` values to `https://your-coder-domanin.com/proxy` in
+  the `values.yaml` file of your Coder Helm chart. Review our guide on [updating
+  Helm charts](../admin/helm-charts.md) for more information on how to do this.
+
+If none of these steps resolve the issue, please [contact
+us](https://coder.com/contact) for further support.
diff --git a/manifest.json b/manifest.json
index 7cbadd6f7..1f0ee451d 100644
--- a/manifest.json
+++ b/manifest.json
@@ -372,6 +372,9 @@
             },
             {
               "path": "./guides/troubleshooting/inotify-watch-limits.md"
+            },
+            {
+              "path": "./guides/troubleshooting/502error.md"
             }
           ]
         }