AP doesn't work at 5 GHz after upgrading hostapd from 2.10 to 2.11

Antony Kolitsos zeusomighty at hotmail.com
Mon Jul 7 09:23:50 PDT 2025


Same issue on the Linksys ea3500/4500 devices with Marvell 88W8366 WLAN chipsets. Applying the following patch resolves my issue:

--- a/src/ap/beacon.c
+++ b/src/ap/beacon.c
@@ -88,11 +88,13 @@ static u8 ieee802_11_erp_info(struct hos
 
 static u8 * hostapd_eid_ds_params(struct hostapd_data *hapd, u8 *eid)
 {
+#if defined(CONFIG_IEEE80211AC) || defined(CONFIG_IEEE80211AX) || defined(CONFIG_IEEE80211BE)
      enum hostapd_hw_mode hw_mode = hapd->iconf->hw_mode;
 
      if (hw_mode != HOSTAPD_MODE_IEEE80211G &&
          hw_mode != HOSTAPD_MODE_IEEE80211B)
            return eid;
+#endif /* CONFIG_IEEE80211AC || CONFIG_IEEE80211AX || CONFIG_IEEE80211BE */
 
      *eid++ = WLAN_EID_DS_PARAMS;
      *eid++ = 1; 


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