I've restarted probetest to see if the situation improves.

Looking at the graph there is a slow increase of unknown NAT proxies and decrease of restricted for the last 10 days. Other times that probetest has failed the increase was more steep.

Quoting alertmanager@hetzner-nbg1-02.torproject.org (2022-05-03 20:17:13)

Total firing alerts: 1 Total resolved alerts: 0

## Firing Alerts

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Time: 2022-05-03 18:16:30.286335746 +0000 UTC Summary: There is a problem testing the type of NAT of our proxies Description: There are only 2.0 times proxies with known NAT type than with unknown

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##Resolved Alerts