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[wifi] Fix roaming attempt counter reset on disconnect during scan (#15099)

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This commit is contained in:
J. Nick Koston
2026-03-23 08:47:15 -10:00
committed by Jesse Hills
parent e261b5de65
commit f7b410fd0c
1 changed files with 7 additions and 6 deletions
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esphome/components/wifi/wifi_component.cpp
+7 -6
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@@ -269,11 +269,11 @@ bool CompactString::operator==(const StringRef &other) const {
/// │ │ │
/// │ ┌──────────────┼──────────────┐ │
/// │ ↓ ↓ ↓ │
/// │ scan error no better AP +10 dB better AP │
/// │ disconnect no better AP +10 dB better AP │
/// │ │ │ │ │
/// │ ↓ ↓ ↓ │
/// │ ┌──────────────────────────────┐ ┌──────────────────────────┐ │
/// │ │ → IDLE │ │ CONNECTING │ │
/// │ │ → RECONNECTING │ │ CONNECTING │ │
/// │ │ (counter preserved) │ │ (process_roaming_scan_) │ │
/// │ └──────────────────────────────┘ └────────────┬─────────────┘ │
/// │ │ │
@@ -296,7 +296,7 @@ bool CompactString::operator==(const StringRef &other) const {
/// │ Key behaviors: │
/// │ - After 3 checks: attempts >= 3, stop checking │
/// │ - Non-roaming disconnect: clear_roaming_state_() resets counter │
/// │ - Scan error (SCANNING→IDLE): counter preserved │
/// │ - Disconnect during scan (SCANNING→RECONNECTING): counter preserved │
/// │ - Roaming success (CONNECTING→IDLE): counter reset (can roam again) │
/// │ - Roaming fail (RECONNECTING→IDLE): counter preserved (ping-pong) │
/// └──────────────────────────────────────────────────────────────────────┘
@@ -2075,9 +2075,10 @@ void WiFiComponent::retry_connect() {
ESP_LOGD(TAG, "Roam failed, reconnecting (attempt %u/%u)", this->roaming_attempts_, ROAMING_MAX_ATTEMPTS);
this->roaming_state_ = RoamingState::RECONNECTING;
} else if (this->roaming_state_ == RoamingState::SCANNING) {
// Roam scan failed (e.g., scan error on ESP8266) - go back to idle, keep counter
ESP_LOGD(TAG, "Roam scan failed (attempt %u/%u)", this->roaming_attempts_, ROAMING_MAX_ATTEMPTS);
this->roaming_state_ = RoamingState::IDLE;
// Disconnected during roam scan - transition to RECONNECTING so the attempts
// counter is preserved when reconnection succeeds (IDLE would reset it)
ESP_LOGD(TAG, "Disconnected during roam scan (attempt %u/%u)", this->roaming_attempts_, ROAMING_MAX_ATTEMPTS);
this->roaming_state_ = RoamingState::RECONNECTING;
} else if (this->roaming_state_ == RoamingState::IDLE) {
// Not a roaming-triggered reconnect, reset state
this->clear_roaming_state_();