BW Desktop Client have "Failed to Fetch" for VW URL but not Browser extension #258

New Issue

MrUnknownDE · 2026-04-05T20:44:17+02:00

MrUnknownDE commented

2026-04-05 20:44:17 +02:00

Originally created by @fultonm on 11/30/2025

Prerequisites

I have searched the existing Closed AND Open Issues AND Discussions
I have searched and read the documentation

Vaultwarden Support String

That page doesn't exist.

it's vaultwarden/server:latest docker container

Vaultwarden Build Version

vaultwarden/server:latest

Deployment method

Official Container Image

Custom deployment method

No response

Reverse Proxy

traefik 3.4

Host/Server Operating System

NAS/SAN

Operating System Version

Synology

Clients

Desktop

Client Version

2025.11.2

Steps To Reproduce

Attempt to connect BW Desktop client to https://vw.mydomain.home - Failed to fetch error
Attempt to connect BW Firefox extension client to the same URL - Works just fine

the cert is created with mkcert and added as trusted root cert in Windows. Can load Vaultwarden Web UI with no warnings. No self signed cert exceptions are created for this domain.

Expected Result

Desktop client connects using the same input as Firefox extension

Actual Result

Failed to fetch

Logs

Screenshots or Videos

No response

Additional Context

No response

*Originally created by @fultonm on 11/30/2025* ### Prerequisites - [x] I have searched the existing **Closed _AND_ Open** [Issues](https://github.com/dani-garcia/vaultwarden/issues?q=is%3Aissue%20) **_AND_** [Discussions](https://github.com/dani-garcia/vaultwarden/discussions?discussions_q=) - [x] I have searched and read the [documentation](https://github.com/dani-garcia/vaultwarden/wiki/) ### Vaultwarden Support String That page doesn't exist. <img width="1251" height="957" alt="Image" src="https://github.com/user-attachments/assets/b09496c4-d54c-4835-ab58-aba7c176eebb" /> it's vaultwarden/server:latest docker container ### Vaultwarden Build Version vaultwarden/server:latest ### Deployment method Official Container Image ### Custom deployment method _No response_ ### Reverse Proxy traefik 3.4 ### Host/Server Operating System NAS/SAN ### Operating System Version Synology ### Clients Desktop ### Client Version 2025.11.2 ### Steps To Reproduce Attempt to connect BW Desktop client to `https://vw.mydomain.home` - Failed to fetch error Attempt to connect BW Firefox extension client to the same URL - Works just fine the cert is created with mkcert and added as trusted root cert in Windows. Can load Vaultwarden Web UI with no warnings. No self signed cert exceptions are created for this domain. ### Expected Result Desktop client connects using the same input as Firefox extension ### Actual Result Failed to fetch ### Logs ```text ``` ### Screenshots or Videos _No response_ ### Additional Context _No response_

MrUnknownDE closed this issue

2026-04-05 20:44:17 +02:00

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Reference: github/vaultwarden#258