fix: XB10-2960 — 5GHz 160MHz channel bandwidth always disabled on page load

[udaybhadauria]

Summary

The 20/40/80/160 channel bandwidth radio button (#channel_bandwidth3) in the 5GHz wireless config page is permanently disabled on every page load, regardless of backend DFS state. All other options (20 / 20/40 / 20/40/80) work correctly.

Affected Build

• Model: CGM601TCOM
• Build: CGM601TCOM_DEV_26Q3_sprint_20260728232920sdy_NG (SPIN 12)
• File: source/Styles/xb3/jst/wireless_network_configuration_onestack.jst

Root Cause

// BEFORE (broken)
$("[name='DFS_boot_disabled']").change(function() {
    if($("#DFS_boot_disabled").is(":checked"))  {
        $("#channel_bandwidth3").prop("disabled", true);
    }else{
        $("#channel_bandwidth3").prop("disabled", false);
    }
}).trigger("change");   // <-- BUG: fires on every page load

.trigger("change") unconditionally invokes the onChange handler at page load.
Since #DFS_boot_disabled is HTML-default-checked (Disable), this always calls .prop("disabled", true) on #channel_bandwidth3, overriding the correct $dfsBoot backend-driven init block above it.

Introduced by: PR #37 — RDKB-63519, RDKB-63615: 6GHz & XB10 models support in BWG GUI
Commit: 7b48cbac07 | Merged: 2026-02-26 | Author: Pavan Kumar Reddy B

Fix

// AFTER (fixed)
$("[name='DFS_boot_disabled']").change(function() {
    if($("#DFS_boot_disabled").is(":checked"))  {
        $("#channel_bandwidth3").prop("disabled", true);
    }else{
        $("#channel_bandwidth3").prop("disabled", false);
    }
});
// $dfsBoot static check above already handles initial page-load state from backend

Remove .trigger("change"). The $dfsBoot='<?% echo($dfsAtBootup); ?>' check immediately above already correctly sets initial disabled state from backend data — no trigger needed.

Impact

• Only #channel_bandwidth3 (160MHz) affected
• 100% reproducible on every page load on affected builds
• No backend / API changes required — JS-only, one-line fix

Test

1. Navigate to Wireless → 5GHz → Edit
2. Verify 160MHz radio button is no longer greyed out
3. Toggle DFS Boot Disabled checkbox — verify 160MHz enables/disables correctly

Fixes: XB10-2960

[github-actions]

📋 PR Format Reminder

• Title: fix: XB10-2960 — 5GHz 160MHz channel bandwidth always disabled on page load — expected TICKET-123 : description
  (Multiple tickets OK: RDKCOM-5492 RDKBDEV-3336 : ... | Include US ticket + subtask for user-stories)
• Description missing:
  • Reason for change
  • Test Procedure
  • Risks (Low / Medium / High)
  • Priority (P0 / P1 / P2)

Expected:

TICKET-123 : brief description

Reason for change: why
Test Procedure: how to verify
Risks: Low / Medium / High
Priority: P0 / P1 / P2