diff --git a/abonapp/views.py b/abonapp/views.py
index a6874aa..6d6b548 100644
--- a/abonapp/views.py
+++ b/abonapp/views.py
@@ -14,6 +14,7 @@ from django.utils.translation import gettext_lazy as _
 from django.utils.decorators import method_decorator
 from django.views.generic import ListView, UpdateView, CreateView, DeleteView
 from django.conf import settings
+from djing.lib import DuplicateEntry
 from jsonview.decorators import json_view
 
 from agent.commands.dhcp import dhcp_commit, dhcp_expiry, dhcp_release
@@ -55,10 +56,7 @@ class PeoplesListView(OrderedFilteredList):
             for abon in peoples_list.iterator():
                 ips = tuple(p.ip for p in abon.ip_addresses.filter(is_active=True))
                 if len(ips) > 0:
-                    try:
-                        abon.stat_cache = StatCache.objects.get(ip__in=ips)
-                    except StatCache.DoesNotExist:
-                        pass
+                    abon.stat_cache = StatCache.objects.filter(ip__in=ips).first()
         except lib.LogicError as e:
             messages.warning(self.request, e)
         ordering = self.get_ordering()
@@ -1247,3 +1245,7 @@ class DhcpLever(SecureApiView):
         except lib.LogicError as e:
             print('LogicError', e)
             return str(e)
+        except DuplicateEntry as e:
+            print('Duplicate:', e)
+            return str(e)
+
diff --git a/djing/global_base_views.py b/djing/global_base_views.py
index 1377726..d3b71c2 100644
--- a/djing/global_base_views.py
+++ b/djing/global_base_views.py
@@ -57,7 +57,7 @@ class AllowedSubnetMixin(object):
                 return super(AllowedSubnetMixin, self).dispatch(request, *args, **kwargs)
         try:
             for subnet in api_auth_subnet:
-                if ip in ip_network(subnet):
+                if ip in ip_network(subnet, strict=False):
                     return super(AllowedSubnetMixin, self).dispatch(request, *args, **kwargs)
         except TypeError:
             if ip in ip_network(str(api_auth_subnet)):
diff --git a/ip_pool/models.py b/ip_pool/models.py
index 642e780..cf7792d 100644
--- a/ip_pool/models.py
+++ b/ip_pool/models.py
@@ -150,7 +150,7 @@ class IpLeaseManager(models.Manager):
             )
         except IntegrityError as e:
             if 'Duplicate entry' in str(e):
-                raise DuplicateEntry(_('Ip has already taken'))
+                raise DuplicateEntry("%s: %s" %(_('Ip has already taken'), str(e)))
             raise e
 
     def expired(self):
diff --git a/taskapp/forms.py b/taskapp/forms.py
index 3235b8e..ca9e8e1 100644
--- a/taskapp/forms.py
+++ b/taskapp/forms.py
@@ -48,7 +48,8 @@ class ExtraCommentForm(forms.ModelForm):
         comment = super(ExtraCommentForm, self).save(commit=False)
         comment.author = author
         comment.task = task
-        return comment.save()
+        comment.save()
+        return comment
 
     def save(self, commit=True):
         raise Exception('You must use ExtraCommentForm.make_save() method')
diff --git a/taskapp/models.py b/taskapp/models.py
index a9d3cdf..89d8e2a 100644
--- a/taskapp/models.py
+++ b/taskapp/models.py
@@ -3,6 +3,7 @@ from datetime import timedelta
 import os
 from django.db import models
 from django.conf import settings
+from django.shortcuts import resolve_url
 from django.utils import timezone
 from django.utils.translation import ugettext as _
 from abonapp.models import Abon
@@ -125,6 +126,9 @@ class ExtraComment(models.Model):
     def __str__(self):
         return self.text
 
+    def get_absolute_url(self):
+        return resolve_url('taskapp:edit', self.task.pk)
+
     class Meta:
         db_table = 'extra_comments'
         permissions = (