Data path down control path up issue

[Adam Watts]

have just set up a WLC 4402 as a Guest WLan controler on the DMZ of our network.

i have sucsessfully managed to get our internal controllers to connect to it, with the exception of 1. it says the control path is up but the data path is down. the other 14 controllers worked fine, and in testing the last one was ok but it is now not working properly. the 2 controllers can ping each other but just won't create the data tunnel. there is a firewall in the middle but that has been set up to allow traffic between the 2 groups of controllers to be unrestricted.

the internal controllers are 4404's and all controllers are running the same version of code. 5.1.151.0

any ideas would be great.

Adam

[nw-team01]

Sorry for bringing this one up again. We have an issue with three WLC 2504 (Version 8.5.135) in one particular location.

On all three WLC they have themselves in one mobility group, control and data path UP. Each one has also a mobility anchor in our main office.

From time to time on all three WLC at the same time the data path to the mobility anchor in our main office is DOWN. eping is not working anymore. mping is still working. There is NO firewall between those WLC and the mobility anchor in the main office, so nothing should be blocked.

We tried removing the anchor config and re-adding it but it didn't work. They only solution was: Rebooting the three WLC. After the reboot the control and data path are immedieatly UP. But we can just reboot the WLC every few weeks as it effects production. Has anyone the same issue and knows a solution?