From 81dfbe547f8dd77674f7b485019e51ef06efedeb Mon Sep 17 00:00:00 2001
From: Wessel Nieboer <github@weebl.me>
Date: Sun, 8 Mar 2026 14:28:16 +0100
Subject: [PATCH] Fix timewrap bug

---
 src/Dispatcher.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/Dispatcher.cpp b/src/Dispatcher.cpp
index 9d7a11131..b0f9491c9 100644
--- a/src/Dispatcher.cpp
+++ b/src/Dispatcher.cpp
@@ -20,7 +20,16 @@ void Dispatcher::begin() {
   n_sent_flood = n_sent_direct = 0;
   n_recv_flood = n_recv_direct = 0;
   _err_flags = 0;
-  radio_nonrx_start = _ms->getMillis();
+
+  unsigned long now = _ms->getMillis();
+  radio_nonrx_start = now;
+  // Initialize timers to "just passed" so millisHasNowPassed() returns true
+  // immediately. Using 0 breaks when millis is in the upper half of uint32
+  // range (near the 49-day wrap), because the signed comparison trick
+  // interprets 0 as a future timestamp.
+  next_tx_time = now;
+  next_floor_calib_time = now;
+  next_agc_reset_time = now;
 
   duty_cycle_window_ms = getDutyCycleWindowMs();
   float duty_cycle = 1.0f / (1.0f + getAirtimeBudgetFactor());