diff --git a/src/yunohost/certificate.py b/src/yunohost/certificate.py
index b6fb0e275..310c5d131 100644
--- a/src/yunohost/certificate.py
+++ b/src/yunohost/certificate.py
@@ -44,6 +44,7 @@ from moulinette.core import MoulinetteError
 from moulinette.utils.log import getActionLogger
 
 import yunohost.domain
+from yunohost.utils.network import get_public_ip
 
 from moulinette import m18n
 from yunohost.app import app_ssowatconf
@@ -809,7 +810,7 @@ def _backup_current_cert(domain):
 
 
 def _check_domain_is_ready_for_ACME(domain):
-    public_ip = yunohost.domain.get_public_ip()
+    public_ip = get_public_ip()
 
     # Check if IP from DNS matches public IP
     if not _dns_ip_match_public_ip(public_ip, domain):
@@ -856,14 +857,9 @@ def _regen_dnsmasq_if_needed():
     """
     Update the dnsmasq conf if some IPs are not up to date...
     """
-    try:
-        ipv4 = yunohost.domain.get_public_ip()
-    except:
-        ipv4 = None
-    try:
-        ipv6 = yunohost.domain.get_public_ip(6)
-    except:
-        ipv6 = None
+
+    ipv4 = get_public_ip()
+    ipv6 = get_public_ip(6)
 
     do_regen = False
 
diff --git a/src/yunohost/domain.py b/src/yunohost/domain.py
index 19a5e55a7..026c4da36 100644
--- a/src/yunohost/domain.py
+++ b/src/yunohost/domain.py
@@ -37,6 +37,7 @@ from moulinette.utils.log import getActionLogger
 import yunohost.certificate
 
 from yunohost.service import service_regen_conf
+from yunohost.utils.network import get_public_ip
 
 logger = getActionLogger('yunohost.domain')
 
@@ -318,15 +319,8 @@ def _build_dns_conf(domain, ttl=3600):
     }
     """
 
-    try:
-        ipv4 = get_public_ip()
-    except:
-        ipv4 = None
-
-    try:
-        ipv6 = get_public_ip(6)
-    except:
-        ipv6 = None
+    ipv4 = get_public_ip()
+    ipv6 = get_public_ip(6)
 
     basic = []
 
diff --git a/src/yunohost/dyndns.py b/src/yunohost/dyndns.py
index 851d04f45..8c4efd777 100644
--- a/src/yunohost/dyndns.py
+++ b/src/yunohost/dyndns.py
@@ -39,7 +39,8 @@ from moulinette.utils.log import getActionLogger
 from moulinette.utils.filesystem import read_file, write_to_file, rm
 from moulinette.utils.network import download_json
 
-from yunohost.domain import get_public_ips, _get_maindomain, _build_dns_conf
+from yunohost.domain import _get_maindomain, _build_dns_conf
+from yunohost.utils.network import get_public_ips
 
 logger = getActionLogger('yunohost.dyndns')
 
diff --git a/src/yunohost/monitor.py b/src/yunohost/monitor.py
index d99ac1688..ed13d532d 100644
--- a/src/yunohost/monitor.py
+++ b/src/yunohost/monitor.py
@@ -41,7 +41,8 @@ from moulinette import m18n
 from moulinette.core import MoulinetteError
 from moulinette.utils.log import getActionLogger
 
-from yunohost.domain import get_public_ip, _get_maindomain
+from yunohost.utils.network import get_public_ip
+from yunohost.domain import _get_maindomain
 
 logger = getActionLogger('yunohost.monitor')
 
@@ -210,10 +211,7 @@ def monitor_network(units=None, human_readable=False):
                 else:
                     logger.debug('interface name %s was not found', iname)
         elif u == 'infos':
-            try:
-                p_ipv4 = get_public_ip()
-            except:
-                p_ipv4 = 'unknown'
+            p_ipv4 = get_public_ip() or 'unknown'
 
             l_ip = 'unknown'
             for name, addrs in devices.items():
diff --git a/src/yunohost/tools.py b/src/yunohost/tools.py
index b997961be..381cd07e0 100644
--- a/src/yunohost/tools.py
+++ b/src/yunohost/tools.py
@@ -45,12 +45,13 @@ from moulinette.utils.log import getActionLogger
 from moulinette.utils.process import check_output
 from moulinette.utils.filesystem import read_json, write_to_json
 from yunohost.app import app_fetchlist, app_info, app_upgrade, app_ssowatconf, app_list, _install_appslist_fetch_cron
-from yunohost.domain import domain_add, domain_list, get_public_ip, _get_maindomain, _set_maindomain
+from yunohost.domain import domain_add, domain_list, _get_maindomain, _set_maindomain
 from yunohost.dyndns import _dyndns_available, _dyndns_provides
 from yunohost.firewall import firewall_upnp
 from yunohost.service import service_status, service_regen_conf, service_log, service_start, service_enable
 from yunohost.monitor import monitor_disk, monitor_system
 from yunohost.utils.packages import ynh_packages_version
+from yunohost.utils.network import get_public_ip
 
 # FIXME this is a duplicate from apps.py
 APPS_SETTING_PATH = '/etc/yunohost/apps/'
@@ -621,16 +622,11 @@ def tools_diagnosis(auth, private=False):
     # Private data
     if private:
         diagnosis['private'] = OrderedDict()
+
         # Public IP
         diagnosis['private']['public_ip'] = {}
-        try:
-            diagnosis['private']['public_ip']['IPv4'] = get_public_ip(4)
-        except MoulinetteError as e:
-            pass
-        try:
-            diagnosis['private']['public_ip']['IPv6'] = get_public_ip(6)
-        except MoulinetteError as e:
-            pass
+        diagnosis['private']['public_ip']['IPv4'] = get_public_ip(4)
+        diagnosis['private']['public_ip']['IPv6'] = get_public_ip(6)
 
         # Domains
         diagnosis['private']['domains'] = domain_list(auth)['domains']