Help from a person,
not a ticket queue.
Underpass is built and supported by the same person, so your question goes to someone who knows the product inside out.
Email support
Setup trouble, a device that won't connect, anything that looks wrong. A person reads it and writes back.
Ask the assistant
The support chat in your dashboard answers how-to questions straight away, any time of day.
Open the dashboard →Plans and billing
Upgrades, invoices, a plan for more than 50 people, or a signed DPA for your procurement team.
Security issue
Found a vulnerability? Report it privately; we acknowledge within 3 business days.
Security & disclosure →Before you write,
try these.
The four things people ask about most, and what fixes them.
Check the app is running and signed in: tailnet status shows its state. If it says it's waiting for approval, an admin approves it on the Machines page. If its key expired, log it in again.
When you write, include
- The device's name and operating system
- The app version
tailnet version - What the device sees
tailnet status - The exact error text, or a screenshot
- What you expected, and what happened instead
Never send private keys, auth keys or API tokens. We'll never ask for them.
/ Independent · bootstrapped · no investors
Built by a person,
not a fund.
I'm Endi, and I build Underpass myself. No investors to answer to, only the people who run their networks on it. Every message that comes in reaches me directly.