UDP (SlimeVR) Tracker only connecting after a long wait #464

New Issue

MrUnknownDE · 2026-04-05T19:03:08+02:00

MrUnknownDE commented

2026-04-05 19:03:08 +02:00

Originally created by @unlogisch04 on 3/9/2025

When the server sees a Handshake and the tracker is in the connected list, it should send the Hey OVR =D 5 #define PACKET_HANDSHAKE 3 packet directly. The trackers do not connect to the server trough its broadcasts packets. Only after receiving the directly to the tracker send Handshake. But for some unknown reason it takes a long time (multiple broadcasts) that the servers try to connect.

Code thats run for the log is here:
c649b9a5fe/server/core/src/main/java/dev/slimevr/tracking/trackers/udp/TrackersUDPServer.kt (L80)
But not sure where the Handshake would be correct.

Probably something to fix with
#1326

*Originally created by @unlogisch04 on 3/9/2025* When the server sees a Handshake and the tracker is in the connected list, it should send the `Hey OVR =D 5` `#define PACKET_HANDSHAKE 3` packet directly. The trackers do not connect to the server trough its broadcasts packets. Only after receiving the directly to the tracker send Handshake. But for some unknown reason it takes a long time (multiple broadcasts) that the servers try to connect. Code thats run for the log is here: https://github.com/SlimeVR/SlimeVR-Server/blob/c649b9a5fe6af7d0f37f5100135a0206f699fb5d/server/core/src/main/java/dev/slimevr/tracking/trackers/udp/TrackersUDPServer.kt#L80 But not sure where the Handshake would be correct. Probably something to fix with #1326

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aed/grammar-police

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bscotch/accel-mount

dependabot/github_actions/gradle/actions-6

dependabot/github_actions/pnpm/action-setup-5

dependabot/github_actions/actions/upload-artifact-7

dependabot/github_actions/actions/download-artifact-8

FloorClipSteamLinkInteractionFix

sapphire/trim-vrm-json

llelievr/trackers-udp-tests

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sapphire/stay-aligned-setup-no-step-skip

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sapphire/proportions-import-skeleton-request

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fingertracking

update-eslint

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support-inches

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Reference: github/SlimeVR-Server#464