UCCX 8.5 HA NTP issues (virtual servers)

Hello,
I'm working with an UCCX HA server that is having NTP issues. It reports that it is synchronized, but at stratum 16, which is considered to be unsynchronized. Also, it's always exactly 3 seconds off. I'm not sure if this is related, yet, but every time the servers failover, agents get licensing errors and cannot log into CAD.
PRIMARY UCCX
admin:utils ntp status
ntpd (pid 17380) is running...
     remote           refid      st t when poll reach   delay   offset jitter
==============================================================================
*198.147.23.5    139.78.135.14    2 u 291 512 377   37.758    5.479   0.298
+173.203.211.73 71.252.193.25    3 u 164 512 377   14.891   -1.871   0.106
+204.13.164.164 140.142.16.34    2 u 157 512 377   68.322   -0.486   0.053
synchronised to NTP server (198.147.23.5) at stratum 3
   time correct to within 57 ms
   polling server every 512 s
Current time in UTC is : Mon Mar 11 16:01:09 UTC 2013
Current time in America/Denver is : Mon Mar 11 10:01:09 MDT 2013
HA UCCX
admin:utils ntp status
ntpd (pid 16801) is running...
     remote           refid      st t when poll reach   delay   offset jitter
==============================================================================
*10.10.130.12    198.147.23.5     3 u   24   64   17   56.269 -2318.6   1.887
synchronised to NTP server (STEP) at stratum 16
   time correct to within 251 ms
   polling server every 64 s
Current time in UTC is : Mon Mar 11 16:01:12 UTC 2013
Current time in America/Denver is : Mon Mar 11 10:01:11 MDT 2013
Additionally, the following alert shows up in RTMT
At Wed Feb 13 11:11:17 MST 2013 on node 10.10.111.12; the following SyslogSeverityMatchFound events generated: SeverityMatch : Critical MatchedEvent : Feb 13 11:11:06 MVTUCCXHA2 user 2 ntpRunningStatus.sh: The local NTP client is off by more than the acceptable threshold of 3 seconds from its remote NTP system peer. The normal remedy is for NTP Watch Dog to automatically restart NTP. However; an unusual number of automatic NTP restarts have already occurred on this node. No additional automatic NTP restarts will be done until NTP time synchronization stabilizes. This is likely due to an excessive number of VMware Virtual Machine migrations or Storage VMotions. Please consult your VMware Infrastructure Support Team. AppID : Cisco Syslog Agent ClusterID : NodeID : MVTUCCXHA2 TimeStamp : Wed Feb 13 11:11:06 MST 2013
The servers are installed in a VMWare vSphere virtual environment on Cisco-approved IBM hosts. They have not been vmotioned or storage vmotioned.
Originally, the servers were configured to get time from Microsoft domain controllers. Since they use SNTP and UC servers require NTPv4, I configured the primary UCCX server to use public NTPv4 servers. I have updated vmware tools on both servers and rebooted the servers and restarted ntp services, but nothing will get time to synchronize on the HA server.
Finally, there are other UC servers (CUCM & CUC) set up to use the same NTP servers, but the HA servers cannot synchronize their time no matter what I do. I've tried different NTP servers both on the LAN and public ones. I thought I would include this detail since my gut is telling me that this issue has something to do with the virtual environment.
HA CUC
admin:utils ntp status
ntpd (pid 14554) is running...
     remote           refid      st t when poll reach   delay   offset jitter
==============================================================================
10.10.111.11    204.13.164.164   3 u    -   64    1   50.504 431.491 221.689
unsynchronised
time server re-starting
   polling server every 64 s
Current time in UTC is : Mon Mar 11 15:20:22 UTC 2013
Current time in America/Denver is : Mon Mar 11 09:20:22 MDT 2013
I can see NTP traffic between the two servers:
admin:utils network capture port 123
Executing command with options:
size=128                count=1000              interface=eth0
src=                    dest=                   port=123
ip=
09:29:28.051951 IP MVTCUCNXHA.mvte.com.ntp > MVTCUCNXPRI.mvte.com.ntp: NTPv4, Client, length 48
09:29:28.105679 IP MVTCUCNXPRI.mvte.com.ntp > MVTCUCNXHA.mvte.com.ntp: NTPv4, Server, length 48
09:29:30.049773 IP MVTCUCNXHA.mvte.com.ntp > MVTCUCNXPRI.mvte.com.ntp: NTPv4, Client, length 48
09:29:30.100371 IP MVTCUCNXPRI.mvte.com.ntp > MVTCUCNXHA.mvte.com.ntp: NTPv4, Server, length 48
09:29:32.051282 IP MVTCUCNXHA.mvte.com.ntp > MVTCUCNXPRI.mvte.com.ntp: NTPv4, Client, length 48
09:29:32.103161 IP MVTCUCNXPRI.mvte.com.ntp > MVTCUCNXHA.mvte.com.ntp: NTPv4, Server, length 48
09:29:34.049279 IP MVTCUCNXHA.mvte.com.ntp > MVTCUCNXPRI.mvte.com.ntp: NTPv4, Client, length 48
09:29:34.100112 IP MVTCUCNXPRI.mvte.com.ntp > MVTCUCNXHA.mvte.com.ntp: NTPv4, Server, length 48
09:29:36.050723 IP MVTCUCNXHA.mvte.com.ntp > MVTCUCNXPRI.mvte.com.ntp: NTPv4, Client, length 48
09:29:36.101990 IP MVTCUCNXPRI.mvte.com.ntp > MVTCUCNXHA.mvte.com.ntp: NTPv4, Server, length 48
09:29:38.052193 IP MVTCUCNXHA.mvte.com.ntp > MVTCUCNXPRI.mvte.com.ntp: NTPv4, Client, length 48
09:29:38.103854 IP MVTCUCNXPRI.mvte.com.ntp > MVTCUCNXHA.mvte.com.ntp: NTPv4, Server, length 48
09:29:40.050156 IP MVTCUCNXHA.mvte.com.ntp > MVTCUCNXPRI.mvte.com.ntp: NTPv4, Client, length 48
09:29:40.100831 IP MVTCUCNXPRI.mvte.com.ntp > MVTCUCNXHA.mvte.com.ntp: NTPv4, Server, length 48
Any ideas?
Thanks!
Pashtoun

Thanks for the reply Graham! I'm aware that windows does not implement NTP correctly, which is why I was trying NTPv4 and IOS time servers.The NTP issue I was troubleshooting actually ended up being a combination of a couple issues:
1. Cisco Bug CSCtw46611
2. The virtual UC servers need to be configured with the same NTP server as those configured on the VMWare hosts they run in.
The time issue on CUCM and CUC was resolved by the workaround in (1) and the changes made on the hosts regarding (2). The time issue on UCCX was resolved by (2) since it is not affected by the bug. There were some really bizarre issues that went away once NTP was fixed: UCCX would lose data sync with CUCM every time CUCM was rebooted, the voice ports on the HA CUC server had terrible voice quality or would never pick up (eternal ringback), and UCCX failover didn't work (licensing errors, etc as explain in my original post).

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So I defined a new http-port listener pointing to the 80 port on this server. With no SSL support.
Name: http-port80
IP Address: 0.0.0.0
POrt: : 80
Then I defined a new virtual server using the http-port listener. I set the following fields:
ID: mytest
Hosts: www.mytest.com
HTTP Listener: http-port80 (This is the name of the port listener)
Everything seems to be fine. I can enter http://www.mytest.com and call the hello.jsp it's ok.
But then I create a new virtual server for http://www.mytest2.com exactly as the one for the www.mytest.com, except for the host field: http://www.mytest2.com
Then when I restart the app server I got the message on the log: "Port already in use".
I don't want to enter http://www.mytest2.com:<port> but I've read that you cannot assign the same http-listener to 2 virtual servers, so I created another listener pointing to the same port 80. But I still have the same error.
Any ideas how to handle this?
Am I doing something wrong on the configuration?
Thank you very much!!

I can help you out with this, because I just solved this problem using the Apache web server 2.0 with mod_proxy and mod_proxy_http.
this is how the configuration works.
setup sunone creating one virtual host for each http-listener on a different port. and make sure these ports are any port except the 80. -- we will configure apache on this port and then use it as a reverse proxy to get to our hosts.
like this
virtual-listener-1 - port 8081
virtual-listener-2 - port 8082
virtual-listener-3 - port 8083
virtual-host-1: www1.domain.com bind to: virtual-listener-1
virtual-host-2: www2.domain.com bind to: virtual-listener-2
virtual-host-3: www3.domain.com bind to: virtual-listener-3
now download apache with all the modules http://www.apache.org
in your httpd.conf add the following lines of code.
#the code below will tell apache to enable the proxy for your host
<IfModule mod_proxy.c>
# Proxy Server directives. Uncomment the following lines to
# enable the proxy server:
ProxyRequests On
<Proxy *>
Order deny,allow
Deny from all
Allow from www1.domain.com
Allow from www2.domain.com
Allow from www3.domain.com
</Proxy>
# Enable/disable the handling of HTTP/1.1 "Via:" headers.
# ("Full" adds the server version; "Block" removes all outgoing Via: headers)
# Set to one of: Off | On | Full | Block
ProxyVia On
# End of proxy directives.
</IfModule>
NameVirtualHost *:80
<VirtualHost *:80>
ServerName www1.domain.com
<Location />
Order allow,deny
Allow from all
ProxyPass http://sunoneserver:8081/
</Location>
</VirtualHost>
<VirtualHost *:80>
ServerName www2.domain.com
<Location />
Order allow,deny
Allow from all
ProxyPass http://sunoneserver:8082/
</Location>
</VirtualHost>
<VirtualHost *:80>
ServerName www3.domain.com
<Location />
Order allow,deny
Allow from all
ProxyPass http://sunoneserver:8083/
</Location>
</VirtualHost>
note the sunone server indicates the server where you installed sunone-as (J2EE 1.4). this will give you the result you are looking for: all three of these sites will run on port 80 and each of them will respond to a different web application on sunone.
there are naturally limits because when you run out of ports on your application server this won't work any more but then again there are about 60000 of those free and i don't think you will be able to run that many sites on one server anyway.
Chris.

UCCX 8.5 HA NTP issues (virtual servers)

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