diff --git a/recipes-connectivity/modemmanager/files/0001-Use-default-PDP-ctx-4-with-LTE-and-don-t-try-to-auth.patch b/recipes-connectivity/modemmanager/files/0001-Use-default-PDP-ctx-4-with-LTE-and-don-t-try-to-auth.patch
new file mode 100644
index 0000000..8add698
--- /dev/null
+++ b/recipes-connectivity/modemmanager/files/0001-Use-default-PDP-ctx-4-with-LTE-and-don-t-try-to-auth.patch
@@ -0,0 +1,68 @@
+From 66d04a3003f5974dbf1acd5b03b4fa7e50a1ccb0 Mon Sep 17 00:00:00 2001
+From: Alexandre Bard <alexandre.bard@netmodule.com>
+Date: Wed, 12 Dec 2018 15:25:11 +0100
+Subject: [PATCH] Use default PDP ctx(4) with LTE and don't try to authenticate
+ on it
+
+---
+ plugins/ublox/mm-broadband-bearer-ublox.c |  2 +-
+ src/mm-broadband-bearer.c                 | 14 +++++++++++++-
+ 2 files changed, 14 insertions(+), 2 deletions(-)
+
+diff --git a/plugins/ublox/mm-broadband-bearer-ublox.c b/plugins/ublox/mm-broadband-bearer-ublox.c
+index 1adcaa2..37338de 100644
+--- a/plugins/ublox/mm-broadband-bearer-ublox.c
++++ b/plugins/ublox/mm-broadband-bearer-ublox.c
+@@ -530,7 +530,7 @@ check_supported_authentication_methods (GTask *task)
+ 
+     /* Flag whether authentication is required. If it isn't, we won't fail
+      * connection attempt if the +UAUTHREQ command fails */
+-    ctx->auth_required = (user && password && allowed_auth != MM_BEARER_ALLOWED_AUTH_NONE);
++    ctx->auth_required = (ctx->cid != 4 && user && password && allowed_auth != MM_BEARER_ALLOWED_AUTH_NONE);
+ 
+     /* If we already cached the support, not do it again */
+     if (self->priv->allowed_auths != MM_UBLOX_BEARER_ALLOWED_AUTH_UNKNOWN) {
+diff --git a/src/mm-broadband-bearer.c b/src/mm-broadband-bearer.c
+index 779cd9a..db570bd 100644
+--- a/src/mm-broadband-bearer.c
++++ b/src/mm-broadband-bearer.c
+@@ -773,6 +773,7 @@ parse_cid_range (MMBaseModem              *modem,
+             gchar *ip_family_str;
+ 
+             ip_family_str = mm_bearer_ip_family_build_string_from_mask (format->pdp_type);
++            if (ctx->max_cid == 3) ctx->max_cid = 4;
+             if (ctx->max_cid < format->max_cid) {
+                 cid = ctx->max_cid + 1;
+                 mm_dbg ("Using empty CID %u with PDP type '%s'", cid, ip_family_str);
+@@ -810,6 +811,7 @@ parse_pdp_list (MMBaseModem             *modem,
+     GList *pdp_list;
+     GList *l;
+     guint cid;
++    gboolean lte_dflt_cid_detected = FALSE;
+ 
+     /* If cancelled, set result error */
+     if (g_cancellable_is_cancelled (ctx->cancellable)) {
+@@ -862,9 +864,19 @@ parse_pdp_list (MMBaseModem             *modem,
+         g_free (ip_family_str);
+     }
+ 
+-    /* Look for the exact PDP context we want */
++    /* Check if PDP context 4 is present */
+     for (l = pdp_list; l; l = g_list_next (l)) {
+         MM3gppPdpContext *pdp = l->data;
++        if(pdp->cid == 4){
++            lte_dflt_cid_detected = TRUE;
++            ctx->use_existing_cid = TRUE;
++            cid = 4;
++            break;
++        }
++    }
++    /* Look for the exact PDP context we want */
++    for (l = pdp_list; l && !lte_dflt_cid_detected; l = g_list_next (l)) {
++        MM3gppPdpContext *pdp = l->data;
+ 
+         if (pdp->pdp_type == ctx->ip_family) {
+             const gchar *apn;
+-- 
+2.1.4
+
diff --git a/recipes-connectivity/modemmanager/modemmanager_1.8.2.bbappend b/recipes-connectivity/modemmanager/modemmanager_1.8.2.bbappend
new file mode 100644
index 0000000..c959262
--- /dev/null
+++ b/recipes-connectivity/modemmanager/modemmanager_1.8.2.bbappend
@@ -0,0 +1,3 @@
+SRC_URI_append_am335x-nmhw21 = " \
+    file://0001-Use-default-PDP-ctx-4-with-LTE-and-don-t-try-to-auth.patch \
+    "