Cisco Cisco 2106 Wireless LAN Controller
18
Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points for Release 4.1.185.0
OL-31336-01
Important Notes
UNII-2 Channels Disabled on New 1000 Series Access Points for United States,
Canada, and Philippines
Canada, and Philippines
New Cisco 1000 series lightweight access points for the United States, Canada, and the Philippines do
not support the UNII-2 band (5.25 to 5.35 GHz). These models are labeled AP10x0-B, where “B”
represents a new regulatory domain that replaces the previous “A” domain.
not support the UNII-2 band (5.25 to 5.35 GHz). These models are labeled AP10x0-B, where “B”
represents a new regulatory domain that replaces the previous “A” domain.
FCC DFS Support on AP1130s
Federal Communications Commission (FCC) dynamic frequency selection (DFS) is supported only on
AP1130s in the United States, Canada, and the Philippines that have a new FCC ID. Access points use
DFS to detect radar signals such as military and weather sources and then switch channels to avoid
interfering with them. AP1130s with FCC DFS support have an FCC ID LDK102054E sticker. AP1130s
without FCC DFS support have an LDK102054 (no E suffix) sticker. AP1130s that are operating in the
United States, Canada, or the Philippines; have an FCC ID E sticker; and are running the 4.1.171.0
software release or greater can use channels 100 through 140 in the UNII-2 band.
AP1130s in the United States, Canada, and the Philippines that have a new FCC ID. Access points use
DFS to detect radar signals such as military and weather sources and then switch channels to avoid
interfering with them. AP1130s with FCC DFS support have an FCC ID LDK102054E sticker. AP1130s
without FCC DFS support have an LDK102054 (no E suffix) sticker. AP1130s that are operating in the
United States, Canada, or the Philippines; have an FCC ID E sticker; and are running the 4.1.171.0
software release or greater can use channels 100 through 140 in the UNII-2 band.
Access Point Radios Are Not Enabled After Upgrading to 4.1.185.0
After you upgrade the controller in the Catalyst 3750G Wireless LAN Controller Switch to software
release 4.1.185.0, the access point radios are not enabled. This problem occurs because the switch is not
correctly recognizing the access points through CDP and not enabling sufficient inline power for the
radios. To work around this issue, uncheck the CDP State check box on the AP Configuration > CDP
Template page on the controller GUI or enter config ap cdp disable all on the controller CLI.
release 4.1.185.0, the access point radios are not enabled. This problem occurs because the switch is not
correctly recognizing the access points through CDP and not enabling sufficient inline power for the
radios. To work around this issue, uncheck the CDP State check box on the AP Configuration > CDP
Template page on the controller GUI or enter config ap cdp disable all on the controller CLI.
Inaccurate Transmit Power Display
After you change the position of the 802.11a radio antenna for a lightweight 1200 or 1230 series access
point, the power setting is not updated in the controller GUI and CLI. Regardless of the user display, the
internal data is updated, and the transmit power output is changed accordingly. To see the correct
transmit power display values, reboot the access point after changing the antenna’s position.
(CSCsf02280)
point, the power setting is not updated in the controller GUI and CLI. Regardless of the user display, the
internal data is updated, and the transmit power output is changed accordingly. To see the correct
transmit power display values, reboot the access point after changing the antenna’s position.
(CSCsf02280)
Setting the Retransmit Timeout Value for TACACS+ Servers
Cisco recommends that the retransmit timeout value for TACACS+ authentication, authorization, and
accounting servers be increased if you experience repeated reauthentication attempts or the controller
falls back to the backup server when the primary server is active and reachable. The default retransmit
timeout value is 2 seconds and can be increased to a maximum of 30 seconds.
accounting servers be increased if you experience repeated reauthentication attempts or the controller
falls back to the backup server when the primary server is active and reachable. The default retransmit
timeout value is 2 seconds and can be increased to a maximum of 30 seconds.