However, it looks like the SIP trunk between your CUCM and CUBE isn't working, even though the SIP trunk with your ITSP is working fine. The only difference between the configurations is the CUBE's IP address. Since it is possible to join from the CU...

Your vWLC version 17.12.3 seems to be giving you trouble because the 3802i access point isn't registering over CAPWAP ports 5246 and 5247 in this case. The AP has the right public IP address of the controller's WAN interface, and the vWLC can ping th...

It sounds like the way your Cisco AP 2802i is set up as a manager in Mobility Express mode is wrong. When the AP's LED flashes blue, red, and green, it means it's still looking for a Wireless LAN Controller (WLC) because it hasn't been set up as one ...

It looks like the problem you're having is with UDP port 500 not being NATed. This can happen if NAT Traversal (NAT-T) is not being set off. IPsec data is usually wrapped in UDP 4500 by NAT-T so that it can get through NAT devices. Because you're usi...