diff --git a/main/interfaces/Default/templates/connection_info.tmpl b/main/interfaces/Default/templates/connection_info.tmpl
index 994e432..97f4ac6 100644
--- a/main/interfaces/Default/templates/connection_info.tmpl
+++ b/main/interfaces/Default/templates/connection_info.tmpl
@@ -23,7 +23,11 @@ $T('logging'):
     <ul>
     <!--#for $server in $servers#-->
         <li>
-            $server[0]:$server[1]: $server[2]<!--#if not $server[5]#--> ($T('server-blocked'))<!--#end if#-->
+            $server[0]:$server[1]: $server[2]
+                <!--#if not $server[5]#-->
+                    <a href="./unblock_server?server=$server[0]:$server[1]&session=$session">($T('server-blocked'))</a>
+                    &nbsp;&nbsp;$server[6]
+                <!--#end if#-->
             <ul>
             <!--#for $thrd in $server[3]#-->
                 <li>$T('thread') #$thrd[0] -&gt; $thrd[1] -&gt; $thrd[2] -&gt; $thrd[3]</li>
diff --git a/main/interfaces/Plush/templates/connection_info.tmpl b/main/interfaces/Plush/templates/connection_info.tmpl
index 2ea0b3e..baf0d7a 100644
--- a/main/interfaces/Plush/templates/connection_info.tmpl
+++ b/main/interfaces/Plush/templates/connection_info.tmpl
@@ -17,7 +17,11 @@
 <!--#if $servers#-->
 	<!--#for $server in $servers#-->
 	<fieldset class="EntryFieldSet">
-		<legend id="<!--#if int($server[4])#-->configbox_server_encrypted<!--#else#-->configbox_server_decrypted<!--#end if#-->">$server[0]:$server[1]:$server[2]<!--#if not $server[5]#--> ($T('server-blocked'))<!--#end if#-->
+		<legend id="<!--#if int($server[4])#-->configbox_server_encrypted<!--#else#-->configbox_server_decrypted<!--#end if#-->">$server[0]:$server[1]:$server[2]
+        <!--#if not $server[5]#-->
+            <a href="./unblock_server?server=$server[0]:$server[1]&session=$session">($T('server-blocked'))</a>
+            &nbsp;&nbsp;$server[6]
+        <!--#end if#-->
 		</legend>
 		<small><!--#if $server[3]#--><ol class="numbered_list">
 		<!--#for $thrd in $server[3]#-->
diff --git a/main/interfaces/smpl/templates/connection_info.tmpl b/main/interfaces/smpl/templates/connection_info.tmpl
index eaa4b4c..97d0fb1 100644
--- a/main/interfaces/smpl/templates/connection_info.tmpl
+++ b/main/interfaces/smpl/templates/connection_info.tmpl
@@ -15,7 +15,12 @@ $T('logging'):
     <!--#for $server in $servers#-->
         <li>
             $server[0]:$server[1]: $server[2] <!--#if int($server[4])#--><img src="static/images/nuvola/kgpg.png" /><!--#end if#-->
-            <!--#if not $server[5]#--> ($T('server-blocked'))<!--#end if#-->
+            <!--#if not $server[5]#-->
+                <!--#set $srv_id= "unblock_server('" + $server[0] + "','" + str($server[1]) + "');"#-->
+                <a class="config" onClick="$srv_id">
+                ($T('server-blocked'))</a>
+                &nbsp;&nbsp;$server[6]
+            <!--#end if#-->
 
             <ul>
             <!--#for $thrd in $server[3]#-->
diff --git a/main/interfaces/smpl/templates/main.tmpl b/main/interfaces/smpl/templates/main.tmpl
index 3a28770..aa7ec97 100644
--- a/main/interfaces/smpl/templates/main.tmpl
+++ b/main/interfaces/smpl/templates/main.tmpl
@@ -711,6 +711,11 @@ function loadtitle() {
 		d.addErrback(handleServerError);
 	}
 
+	function unblock_server(host, port)
+	{
+		d = doSimpleXMLHttpRequest('connections/unblock_server?server='+host+':'+port+'&session='+session);
+	}
+
 	function getBookmarks()
 	{
 		d = doSimpleXMLHttpRequest('tapi?mode=newzbin&name=get_bookmarks&session='+session);
diff --git a/main/language/fr-fr.txt b/main/language/fr-fr.txt
index 302b8a0..4352645 100644
--- a/main/language/fr-fr.txt
+++ b/main/language/fr-fr.txt
@@ -586,12 +586,14 @@ warn-noRead@1            Ne peut lire %s
 error-except             Exception ?
 error-noInit@3           Echec de l'initialisation %s@%s:%s
 error-serverFailed@4     Echec de la connexion à %s@%s:%s, message=%s
-error-serverLogin@2      Echec de la connexion au serveur %s:%s
-error-serverNoConn@3     Ne peut se connecter au serveur %s:%s [%s]
+error-serverLogin@1      Echec de la connexion au serveur %s
+error-serverNoConn@2     Ne peut se connecter au serveur %s [%s]
 error-serverTooMany@2    Trop de connexions au serveur %s:%s
 warn-ignoreServer@2      Le serveur %s sera ignoré pendant %s minutes
 warn-noActiveServers     Aucun serveur primaire défini, pas de téléchargement possible !
-warn-noConnectServer@3   Impossible de se connecter au serveur %s:%s [%s]
+warn-noConnectServer@2   Impossible de se connecter au serveur %s [%s]
+error-accountSharing     Probable account sharing
+error-serverCred@1       Server %s requires user/password
 warn-thread@3            Thread %s@%s:%s:
 error-mailAuth           Echec de l'autentification au serveur de mail
 error-mailNoConn         Echec de la connexion au serveur de mail
diff --git a/main/language/nl-du.txt b/main/language/nl-du.txt
index c2118dd..0517e7b 100644
--- a/main/language/nl-du.txt
+++ b/main/language/nl-du.txt
@@ -146,7 +146,7 @@ thread            Verbinding
 emailResult       Test resultaat email
 lastWarnings      Recentste meldingen
 clearWarnings     Wissen
-server-blocked    geblokkeerd
+server-blocked    Deblokkeren
 
 # Configuration
 configuration     Instellingen
@@ -582,12 +582,14 @@ warn-noRead@1            Kan %s niet lezen
 error-except             Exception?
 error-noInit@3           Kan geen verbinding maken %s@%s:%s
 error-serverFailed@4     Verbinding %s@%s:%s mislukt, bericht=%s
-error-serverLogin@2      Kan niet aanmelden bij server %s:%s
-error-serverNoConn@3     Kan geen verbinding maken met server %s:%s [%s]
+error-serverLogin@1      Kan niet aanmelden bij server %s
+error-serverNoConn@2     Kan geen verbinding maken met server %s [%s]
 error-serverTooMany@2    Te veel verbindingen met server %s:%s
 warn-ignoreServer@2      Server %s wordt gedurende %s minuten genegeerd
 warn-noActiveServers     Geen aktieve primaire servers, download niet mogelijk!
-warn-noConnectServer@3   Kan geen verbinding maken met server %s:%s [%s]
+warn-noConnectServer@2   Kan geen verbinding maken met server %s [%s]
+error-accountSharing     Mogelijk delen van account
+error-serverCred@1       Server %s heeft gebruikersnaam/wachtwoord nodig
 warn-thread@3            Verbinding %s@%s:%s:
 error-mailAuth           Kan niet aanmelden bij email server
 error-mailNoConn         Kan geen verbinding maken met email server
diff --git a/main/language/us-en.txt b/main/language/us-en.txt
index 5466543..dfa173a 100644
--- a/main/language/us-en.txt
+++ b/main/language/us-en.txt
@@ -148,7 +148,7 @@ thread            Thread
 emailResult       Email Test Result
 lastWarnings      Lastest Warnings
 clearWarnings     clear
-server-blocked    blocked
+server-blocked    Unblock
 
 # Configuration
 configuration     Configuration
@@ -582,12 +582,14 @@ warn-noRead@1            Cannot read %s
 error-except             Exception?
 error-noInit@3           Failed to initialize %s@%s:%s
 error-serverFailed@4     Connecting %s@%s:%s failed, message=%s
-error-serverLogin@2      Failed login for server %s:%s
-error-serverNoConn@3     Cannot connect to server %s:%s [%s]
+error-serverLogin@1      Failed login for server %s
+error-serverNoConn@2     Cannot connect to server %s [%s]
 error-serverTooMany@2    Too many connections to server %s:%s
 warn-ignoreServer@2      Server %s will be ignored for %s minutes
 warn-noActiveServers     No active primary servers defined, will not download!
-warn-noConnectServer@3   Cannot connect to server %s:%s [%s]
+warn-noConnectServer@2   Cannot connect to server %s [%s]
+error-accountSharing     Probable account sharing
+error-serverCred@1       Server %s requires user/password
 warn-thread@3            Thread %s@%s:%s:
 error-mailAuth           Failed to authenticate to mail server
 error-mailNoConn         Failed to connect to mail server
diff --git a/main/sabnzbd/config.py b/main/sabnzbd/config.py
index c337b6c..041b54f 100644
--- a/main/sabnzbd/config.py
+++ b/main/sabnzbd/config.py
@@ -681,12 +681,13 @@ def save_config(force=False):
             except:
                 CFG[section] = {}
             for subsec in database[section]:
+                subsec_mod = subsec.replace('[', '{').replace(']','}')
                 try:
-                    CFG[section][subsec]
+                    CFG[section][subsec_mod]
                 except:
-                    CFG[section][subsec] = {}
+                    CFG[section][subsec_mod] = {}
                 items = database[section][subsec].get_dict()
-                CFG[section][subsec] = items
+                CFG[section][subsec_mod] = items
         else:
             for option in database[section]:
                 sec, kw = database[section][option].ident()
@@ -727,7 +728,7 @@ def define_servers():
     try:
         for server in CFG['servers']:
             svr = CFG['servers'][server]
-            ConfigServer(server, svr)
+            ConfigServer(server.replace('{', '[').replace('}', ']'), svr)
     except KeyError:
         pass
 
diff --git a/main/sabnzbd/downloader.py b/main/sabnzbd/downloader.py
index 6510e40..0336b7f 100644
--- a/main/sabnzbd/downloader.py
+++ b/main/sabnzbd/downloader.py
@@ -22,6 +22,7 @@ sabnzbd.downloader - download engine
 import time
 import select
 import logging
+import datetime
 from threading import Thread
 from nntplib import NNTPPermanentError
 
@@ -162,6 +163,10 @@ def delayed():
     global __DOWNLOADER
     if __DOWNLOADER: return __DOWNLOADER.delayed
 
+def unblock(server):
+    global __DOWNLOADER
+    if __DOWNLOADER: return __DOWNLOADER.unblock(server)
+
 
 #------------------------------------------------------------------------------
 class Server:
@@ -185,6 +190,7 @@ class Server:
         self.idle_threads = []
         self.active = True
         self.bad_cons = 0
+        self.errormsg = ''
 
         for i in range(threads):
             self.idle_threads.append(NewsWrapper(self, i+1))
@@ -238,6 +244,7 @@ class Downloader(Thread):
         self.write_fds = {}
 
         self.servers = []
+        self._timers = {}
 
         primary = False
         for server in config.get_servers():
@@ -292,7 +299,6 @@ class Downloader(Thread):
 
         return primary
 
-
     def stop(self):
         self.shutdown = True
         osx.sendGrowlMsg("SABnzbd",T('grwl-shutdown-begin-msg'),osx.NOTIFICATION['startup'])
@@ -362,9 +368,9 @@ class Downloader(Thread):
                             # disable it now and send a re-enable plan to the scheduler
                             server.bad_cons = 0
                             server.active = False
-                            self.init_server(server.id, None)
+                            server.errormsg = T('warn-ignoreServer@2') % ('', _PENALTY_TIMEOUT)
                             logging.warning(T('warn-ignoreServer@2'), server.id, _PENALTY_TIMEOUT)
-                            sabnzbd.scheduler.plan_server(self.init_server, [None, server.id], _PENALTY_TIMEOUT)
+                            self.plan_server(server.id, _PENALTY_TIMEOUT)
 
                 if server.restart:
                     if not server.busy_threads:
@@ -545,36 +551,46 @@ class Downloader(Thread):
                             penalty = 0
                             msg = error.response
                             ecode = msg[:3]
-                            if ecode in ('481', '482', '381') or (ecode == '502' and clues_login(msg)):
+                            logging.debug('Server login problem: %s, %s', ecode, msg)
+                            if ((ecode in ('502', '400')) and clues_too_many(msg)) or \
+                                (ecode == '481' and clues_too_many(msg)):
+                                # Too many connections: remove this thread and reduce thread-setting for server
+                                if server.active:
+                                    server.errormsg = T('error-serverTooMany@2') % ('', '')
+                                    logging.error(T('error-serverTooMany@2'), server.host, server.port)
+                                    self.__reset_nw(nw, None, warn=False, destroy=True)
+                                    server.threads -= 1
+                            elif ecode in ('502', '481') and clues_too_many_ip(msg):
+                                # Account sharing?
+                                if server.active:
+                                    server.errormsg = T('error-accountSharing')
+                                    name = ' (%s:%s)' % (server.host, server.port)
+                                    logging.error(T('error-accountSharing') + name)
+                                    penalty = _PENALTY_SHARE
+                            elif ecode in ('481', '482', '381') or (ecode == '502' and clues_login(msg)):
                                 # Cannot login, block this server
                                 if server.active:
-                                    logging.error(T('error-serverLogin@2'),  server.host, server.port)
+                                    server.errormsg = T('error-serverLogin@1') % ''
+                                    logging.error(T('error-serverLogin@1'), '%s:%s' % (server.host, server.port))
                                 block = True
-                            elif (ecode in ('502', '400')) and clues_too_many(msg):
-                                # Too many connections: remove this thread and reduce thread-setting for server
-                                logging.error(T('error-serverTooMany@2'),  server.host, server.port)
-                                self.__reset_nw(nw, None, warn=False, destroy=True)
-                                server.threads -= 1
-                            elif (ecode == '502') and clues_too_many_ip(msg):
-                                # Account sharing?
-                                logging.info("Probable account sharing")
-                                penalty = _PENALTY_SHARE
                             elif ecode == '502':
                                 # Cannot connect (other reasons), block this server
                                 if server.active:
-                                    logging.warning(T('warn-noConnectServer@3'),  server.host, server.port, msg)
+                                    server.errormsg = T('warn-noConnectServer@2') % ('', msg)
+                                    logging.warning(T('warn-noConnectServer@2'), '%s:%s' % (server.host, server.port), msg)
                                 penalty = _PENALTY_502
                             else:
                                 # Unknown error, just keep trying
-                                logging.error(T('error-serverNoConn@3'),  server.host, server.port, msg)
-                                penalty = _PENALTY_UNKNOWN
+                                if server.active:
+                                    server.errormsg = T('error-serverNoConn@2') % ('', msg)
+                                    logging.error(T('error-serverNoConn@2'),  '%s:%s' % (server.host, server.port, msg))
+                                    penalty = _PENALTY_UNKNOWN
                             if block or (penalty and server.optional):
                                 if server.active:
                                     server.active = False
-                                    self.init_server(server, None)
                                     if penalty and server.optional:
                                        logging.info('Server %s ignored for %s minutes', server.id, penalty)
-                                       sabnzbd.scheduler.plan_server(self.init_server, [None, server.id], penalty)
+                                       self.plan_server(server.id, penalty)
                                 self.__reset_nw(nw, None, warn=False)
                             continue
                         except:
@@ -610,7 +626,11 @@ class Downloader(Thread):
                                         nw.server.port, article.article)
 
                     elif code == '480':
-                        msg = 'Server %s:%s requires user/password' % (nw.server.host, nw.server.port)
+                        if server.active:
+                            server.active = False
+                            server.errormsg = T('error-serverCred@1') % ''
+                            self.plan_server(server.id, 0)
+                        msg = T('error-serverCred@1') % ('%s:%s' % (nw.server.host, nw.server.port))
                         self.__reset_nw(nw, msg)
 
                 if done:
@@ -699,6 +719,38 @@ class Downloader(Thread):
             logging.error(T('error-except'))
             self.__reset_nw(nw, "server broke off connection")
 
+    #------------------------------------------------------------------------------
+    # Timed restart of servers admin.
+    # For each server all planned events are kept in a list.
+    # When the first timer of a server fires, all other existing timers
+    # are neutralized.
+    # Each server has a dictionary entry, consisting of a list of timestamps.
+
+    def plan_server(self, server_id, interval):
+        """ Plan the restart of a server in 'interval' minutes """
+        logging.debug('Set planned server resume %s in %s mins', server_id, interval)
+        if server_id not in self._timers:
+            self._timers[server_id] = []
+        stamp = datetime.datetime.now()
+        self._timers[server_id].append(stamp)
+        if interval:
+            sabnzbd.scheduler.plan_server(self.trigger_server, [server_id, stamp], interval)
+
+    def trigger_server(self, server_id, timestamp):
+        """ Called by scheduler, start server if timer still valid """
+        logging.debug('Trigger planned server resume %s', server_id)
+        if server_id in self._timers:
+            if timestamp in self._timers[server_id]:
+                del self._timers[server_id]
+                self.init_server(server_id, server_id)
+
+    def unblock(self, server_id):
+        if server_id in self._timers:
+            logging.debug('Unblock server %s', server_id)
+            del self._timers[server_id]
+            self.init_server(server_id, server_id)
+
+
 
 #------------------------------------------------------------------------------
 def clues_login(text):
diff --git a/main/sabnzbd/interface.py b/main/sabnzbd/interface.py
index f61107b..4bd7bb0 100644
--- a/main/sabnzbd/interface.py
+++ b/main/sabnzbd/interface.py
@@ -245,6 +245,7 @@ _MSG_NO_FILE          = 'no file given'
 _MSG_NO_PATH          = 'file does not exist'
 _MSG_OUTPUT_FORMAT    = 'Format not supported'
 _MSG_NO_SUCH_CONFIG   = 'Config item does not exist'
+_MSG_BAD_SERVER_PARMS = 'Incorrect server settings'
 
 def remove_callable(dic):
     """ Remove all callable items from dictionary """
@@ -483,9 +484,13 @@ class MainPage:
         output = kwargs.get('output')
 
         if mode == 'set_config':
-            res = config.set_config(kwargs)
-            if not res:
-                return report(output, _MSG_NO_SUCH_CONFIG)
+            if kwargs.get('section') == 'servers':
+                handle_server_api(output, kwargs)
+            else:
+                res = config.set_config(kwargs)
+                if not res:
+                    return report(output, _MSG_NO_SUCH_CONFIG)
+            config.save_config()
 
         if mode in ('get_config', 'set_config'):
             res, data = config.get_dconfig(kwargs.get('section'), kwargs.get('keyword'))
@@ -1766,9 +1771,7 @@ def handle_server(kwargs, root=None):
     if msg:
         return msg
 
-    # Replace square by curly brackets to avoid clash
-    # between INI format and IPV6 notation
-    server = '%s:%s' % (host.replace('[','{').replace(']','}'), port)
+    server = '%s:%s' % (host, port)
 
     svr = None
     old_server = kwargs.get('server')
@@ -1793,6 +1796,31 @@ def handle_server(kwargs, root=None):
         raise dcRaiser(root, kwargs)
 
 
+def handle_server_api(output, kwargs):
+    """ Special handler for API-call 'set_config'
+    """
+    name = kwargs.get('keyword')
+    if not name:
+        name = kwargs.get('name')
+    if not name:
+        host = kwargs.get('host')
+        port = kwargs.get('port', '119')
+        if host:
+            name = '%s:%s' % (host, port)
+        else:
+            return False
+
+    server = config.get_config('servers', name)
+    if server:
+        server.set_dict(kwargs)
+        old_name = name
+    else:
+        config.ConfigServer(name, kwargs)
+        old_name = None
+    downloader.update_server(old_name, name)
+
+
+
 #------------------------------------------------------------------------------
 
 class ConfigRss:
@@ -2363,7 +2391,7 @@ class ConnectionInfo:
                     connected += 1
 
             busy.sort()
-            header['servers'].append((server.host, server.port, connected, busy, server.ssl, server.active))
+            header['servers'].append((server.host, server.port, connected, busy, server.ssl, server.active, server.errormsg))
 
         wlist = []
         for w in sabnzbd.GUIHANDLER.content():
@@ -2430,6 +2458,15 @@ class ConnectionInfo:
 
         raise dcRaiser(self.__root, kwargs)
 
+    @cherrypy.expose
+    def unblock_server(self, **kwargs):
+        msg = check_session(kwargs)
+        if msg: return msg
+        downloader.unblock(kwargs.get('server'))
+        # Short sleep so that UI shows new server status
+        time.sleep(1.0)
+        raise dcRaiser(self.__root, kwargs)
+
 
 def Protected():
     return badParameterResponse("Configuration is locked")
diff --git a/main/sabnzbd/scheduler.py b/main/sabnzbd/scheduler.py
index 5132f27..8dea661 100644
--- a/main/sabnzbd/scheduler.py
+++ b/main/sabnzbd/scheduler.py
@@ -320,7 +320,7 @@ def pause_int():
 
 
 #------------------------------------------------------------------------------
-def plan_server(action, parms, penalty):
-    """ Plan to re-activate server after "penalty" minutes
+def plan_server(action, parms, interval):
+    """ Plan to re-activate server after "interval" minutes
     """
-    __SCHED.add_single_task(action, '', penalty*60, kronos.method.sequential, parms, None)
+    __SCHED.add_single_task(action, '', interval*60, kronos.method.sequential, parms, None)