Hi all,

First time posting here. I discovered LinuxSampler earlier this year and have been really enjoying it with my MIDI keyboard, mostly running piano libraries through qsampler. Thanks for keeping this project alive for so long.

The reason I am writing: connections to linuxsampler.org (144.91.83.159) from my fixed-line ISP time out on all ports, so I can only reach the site through a mobile hotspot or VPN. DNS resolves fine (tested against 1.1.1.1 and 9.9.9.9 directly). Traceroute dies after 45.88.191.12, inside Contabo's network, one hop from the destination.

Blocked source: 200.150.252.145 (AS52527, IWNET TELECOM, Sao Paulo, Brazil, fixed line). AbuseIPDB shows 0% confidence of abuse for this IP, and the range only carries the standard Spamhaus PBL policy listing that applies to virtually all residential ranges.

A Brazilian mobile carrier IP reaches the site normally, so this is not country-level blocking. My guess is a stale entry covering the IWNET range, either in the server firewall or in Contabo's DDoS filtering, but from outside I cannot tell which. Happy to run any tests from the affected connection if that helps narrow it down.

Thanks,
Roger
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