topic Re: WLC not synchronize with NTP in Wireless

WLC not synchronize with NTP

jong_r0602 — Sat, 03 Jul 2021 22:58:40 GMT

Hi,

I need some help, I have configured my ntp server server in my WLC but i jut noticed that the time is not syncronized. I am able to ping the ntp server in my WLC. Appreciate if someone can help me to correct this problem.

Thanks,

Jong

Re: WLC not synchronize with NTP

Rob Huffman — Wed, 04 Jun 2008 12:33:54 GMT

Hi Jong,

There are some good examples and troubleshooting ideas in this doc;

NTP Configuration and Synchronization for Unified Wireless Network Devices

http://www.cisco.com/en/US/products/ps6366/products_configuration_example09186a0080811274.shtml#setup-wlc

Hope this helps!

Rob

Re: WLC not synchronize with NTP

jong_r0602 — Thu, 05 Jun 2008 04:21:54 GMT

Hi Rob,

I tried it but still not work. Please see the logs. My WLC is 4hr advanced on my ntp server.

Thanks for your time,

Jong

Re: WLC not synchronize with NTP

Scott Fella — Fri, 06 Jun 2008 01:36:20 GMT

Try this.... On the WLC click on the Commands tab, then Set Time. Set the time zone you are in and hit Set Time Zone. Now set the time manually and hit Set Date and Time. Now click on the Controller tab and then NTP. Set the polling to 3600 and hit apply. Now you can change it back to 86400 or what ever time you want the polling to happen. this will force the time to be accurate.

Re: WLC not synchronize with NTP

jong_r0602 — Fri, 06 Jun 2008 14:45:46 GMT

Wow! great its working now!

Thank you very much

-Jong

Re: WLC not synchronize with NTP

Scott Fella — Fri, 06 Jun 2008 19:04:13 GMT

Glad to help!

Re: WLC not synchronize with NTP

Fabien695 — Fri, 08 Dec 2017 09:37:28 GMT

Thank you Scott !

Re: WLC not synchronize with NTP

johnlloyd_13 — Fri, 23 Feb 2018 03:48:53 GMT

hi scott,
had a NTP sync issue on a new WLC and solved with your suggestion.
may i know if this is a bug or is this just the way WLC get stuck with NTP?

Re: WLC not synchronize with NTP

Max Wooks — Thu, 27 Feb 2020 18:03:41 GMT

I also noticed this issue arise with the NTP authentication of servers that aren't at the top of the Server Index list. It would be stuck in "Sync Awaiting" forever until it's place at the top of the Server Index list. Then and only then will the NTP Authentication happen successfully. This is on version 8.5.160.0 on WLC 5508.

Re: WLC not synchronize with NTP

King_1988 — Wed, 19 Aug 2020 06:10:49 GMT

Hello scott,

How can i make C-9800-L wlc synched with NTP server. NTP server is showing unsynchronized from the WLC

Re: WLC not synchronize with NTP

Scott Fella — Wed, 19 Aug 2020 10:41:41 GMT

The 9800 should sync automatically if the NTP server responds. You should try some external NTP to test and also make sure there is nothing blocking between.