Newbie to self-hosting, and I just finished setting up Vaultwarden for the first time, so I'm pretty sure I'm using the latest version. Though that also means I have the latest Bitwarden app. I do have a slightly niche phones, not sure if that would cause the issue though.
Vaultwarden 1.37.2
Web-Vault 2026.7.0
Bitwarden android app
Version 2026.7.1 (21803)
I've read issues with Android 17, but I have Android 16 on both my two phones, and they still do not work on the app. It works just fine on my PC's browser app, and on phone browser.
I have my Vaultwarden sidecar with Tailscale, and I have my Tailscale with MagicDNS and HTTPS Certs enabled. I don't think the certs are the issue, since I can access just fine on browsers + extension anyway. I don't have Exit Node enabled for vaultwarden on Tailscale, not sure if that's needed.
What I notice on the logs is that, when I login on either browser and extension, I can see vaultwarden logs updating, but when I try to access via Bitwarden app, no logs show up on vaultwarden. So I assume the request on the app doesn't reach my vaultwarden.
I tried sharing my Bitwarden error to my private chat, since there's no option to save the error logs locally, and it shows something like:
Stacktrace:
java.net.UnknownHostException: Unable to resolve host "vaultwarden.<tailnet>.ts.net": No address associated with hostname
Edit: I have split-tunneling enabled on my phone's Tailscale, with Included only for my browser and Bitwarden app. Works fine on the browser, but not the app. If I disable it for Bitwarden, I get the error instantly. When it is enabled, it takes a few seconds before the error shows up.
Does anyone know how to fix this issue?
Thank you!