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Cisco Bug: CSCvi51536 - Access Point is not sending TCP fragments over the air

Last Modified

May 09, 2019

Products (1)

  • Cisco Aironet 1850 Series Access Points

Known Affected Releases

8.2(151.0) 8.2(166.0) 8.2(167.3)

Description (partial)

A specific website will not load and eventually timeout, while others load with no problems.

You will see the fragments arriving at the AP port but not sent over the air.

The website is hosted on AWS and accessible through a VPN connection to the AWS VPC. 

TCP fragmentation is in place.

Using 2800/3800 Series Access Point.  Problem is not seen with IOS APs.

FlexConnect Local Switching is enabled at the WLAN.
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