03-12-2009 07:07 AM - edited 07-03-2021 05:18 PM
Since last weekend's DST event I have been unable to keep the time on my controllers updated. They did not update automatically so I went in and manually changed the time fwd one hour. Only to find some time later they all reverted back to being 1 hour behind.
I have 4400 controllers running 4.2.130. The date and timezone are correct. The offset I have configured is (-5) for EST.
I thought DST support was added to 4.2.130. So I don't understand why I have to manually change them back and why they keep reverting back after I do.
Thoughts?
03-12-2009 11:01 AM
Hi Charles,
DST issues still :( Even my $25 Weather Station updated the time properly ...ugh!
I can't tell you why time time changes aren't sticking but I thought you might still be curious in this info;
Daylight Savings Time (DST) is not supported in controller software release 4.2.
http://www.cisco.com/en/US/docs/wireless/controller/release/notes/crn421300.pdf
Related bug with "Fixed-In" versions;
CSCsf99924 Bug Details
Daylight savings cannot be set
Symptom:
In WLC code 3.2.183.0 and 4.0.199.0 (and above), there is no option to
configure an option for the controller automatically to adjust its local
time for daylight time. In earlier WLC versions, a daylight time checkbox
was present, but did not correctly adjust time in the Southern Hemisphere,
and is not aware of the newly legislated daylight time changes for the
United States in 2007.
Workaround:
1. Simply configure UTC aka GMT (no timezone offset)
2. During standard time, run with the standard offset. Then, at the time
when daylight rules take effect, manually tell the WLC to set the offset
forward. When standard time resumes, manually tell the WLC to set the
offset back. For example, if your WLC is in the US Eastern timezone, then
prior to March 11, 2007, you could have the offset set to -5. Then, at
02:00 on March 11, 2007, issue the following CLI command:
config time timezone -4
Similarly, at 02:00 on November 4, 2007, you could issue the command
config time timezone -5
Status
Fixed
Severity
3 - moderate
Last Modified
In Last 3 Days
Product
Cisco 4400 Series Wireless LAN Controllers
Technology
1st Found-In
3.2(180.0)
4.0(206.0)
4.1(76.0)
Fixed-In
5.0(3.0)
5.0(148.0)
Related Bug Information Daylight saving support on WLC
Currently there is no workaround. Customers are advised to use NTP for time tracking.
Cheers!
Rob
03-12-2009 04:42 PM
That's nothing Charles. Wait until you type the command "sh ap eventlog
I'm running 5.2.178.0 firmware. The WLC's DST setting is now working in accordance to my country's DST settings but the LWAP themselves are totally different.
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