# Standalone Snowflake NAT type problem

**URL:** https://forum.torproject.org/t/standalone-snowflake-nat-type-problem/16246
**Category:** Relay Operator
**Tags:** snowflake, anti-censorship
**Created:** [December 8, 2024, 4:36pm UTC](https://forum.torproject.org/t/standalone-snowflake-nat-type-problem/16246 "2024-12-08T16:36:49Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![tobrop](https://forum.torproject.org/user_avatar/forum.torproject.org/tobrop/32/1514_2.png) [@tobrop](https://forum.torproject.org/u/tobrop)
#### Post date: [December 8, 2024, 4:42pm UTC](https://forum.torproject.org/t/standalone-snowflake-nat-type-problem/16246/2 "2024-12-08T16:42:57Z")

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Hello,

what comes to my mind:

> [@Snowflake proxy NAT type changes to restricted on retest](https://forum.torproject.org/t/snowflake-proxy-nat-type-changes-to-restricted-on-retest/15969):
>
> As it happened the 2nd time… during the start of the Snowflake proxy - I’m on commit [c5d68034](https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/commit/c5d680342b33c24ffe6a4a5e85d70376de4660e0) - it correctly shows “NAT unrestricted”. After 24hrs ( nat-retest-interval), for whatever reasons, the NAT type changes to restricted. 2024/11/24 09:23:05 Checking our NAT type, contacting NAT check probe server at "https://snowflake-broker.torproject.net:8443/probe"... 2024/11/24 09:23:05 Probetest: Created Offer 2024/11/24 09:23:05 Probetest: Set local description 2024/11/24 09:23:05 Probetest offer…

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