Guest wireless running slow <1 Mb for one of the foreign vWLC (AIR-CTVM-K9) , the Anchor controller is on DMZ (AIR-CT5508-K9)

[kelvinteh15]

Hi,

We have few vWLC (AIR-CTVM-K9) as the foreign controller for anchoring on difference site . The Anchor controller (AIR-CT5508-K9) is located at DMZ at the main site. The guess wireless are working fine for all the site except Site A . The download speed is <1mb and i do not see any restriction on the Foreign controller as well as the anchor controller . Upload speed could reach to 5Mb . I have check the configuration for other foreign controller and it is working fine and have the similar setting . Could you please shed some light on where should i start to troubleshooting this . User are able to get the correct ip address, gateway , dns server ip address without any issue.

[kelvinteh15]

Issue resolved . End out it is the Qos apply on the vWLC switch port that slow down the speed. Remove the Qos do the trick.