Cisco Cisco 2106 Wireless LAN Controller Guia De Resolução De Problemas

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to be used to provide sufficient power.
config ap power injector enable <AP Name>
Make sure you are running WLC version 4.1.185.0 or later.
2. 
Symbol devices running earlier firmware version might not roam properly. It sticks to the AP
originally associated. This is a known issue and Symbol has released a Beta Version to fix this.
Download the Beta Version from Symbol.
3. 
Aironet IEAironet IE is a Cisco proprietary attribute used by Cisco devices for better connectivity.
Disable Aironet IE. From the WLC GUI go to the WLANs tab. Click on the WLAN to which the
symbol devices connects. Go to the Advanced tab and uncheck Aironet IE.
4. 
Check if the device is CCX certified to ensure interoperability with Cisco WLCs. Certain symbol
devices, such as MC75 and MC5590 (under MPA 1.5 platform), are CCXv4 certified.
Devices such as MC9090 WM 6.1, MC9090 − VGA WM 6.1, MC9094 WM 6.1, MC7090 WM 6.1,
MC7095 WM 6.1, MC7090 WM 6.1, MC7095 WM 6.1, MC70x4 WM 6.1, MC7598 WM 6.1,
MC3090 CE5 Pro, MC3090 CE5 Core, WT4090 CE 5.0(MPA 1.0), and VC5090 CE5.0(MPA 1.0)
are CCXv3 certified.
5. 
Modify the DTIM interval. Good performance has been seen with the DTIM setting of 6.
6. 
Client Exclusion per WLANThis option is normally used to exclude certain clients from accessing
the WLAN. Disable client exclusion to make sure that Symbol device is not in the excluded list.
7. 
MFPManagement Frame Protection is a Cisco properietary feature introduced to ensure the integrity
of the management frames, such as de−authentication, disassociation, beacons, and probes wherein
the AP protects the management frames that it transmits when it adds a Message Integrity Check
Information Element (MIC IE) to each frame. Any attempt made by the intruders to copy, alter, or
replay the frame invalidates the MIC, which causes any receiving AP that is configured to detect MFP
frames, to report the discrepancy. Disable MFP on the WLC.
8. 
Load balancingThis feature is used to prevent too many clients from associating to the WLC.
Disable this feature to ensure that the device is not rejected by any chance. Click on the Controller
tab. Navigate to the General menu to disable Aggressive Load Balancing.
9.