Failed to retrieve list of profiles

The test installation of MC 14.2.0.2894 works fine, all network settings on firewalls are set, phones are connecting to servers, getting all settings and can be managed. There is one disadvantage. When the phones are connected inside the network via WiFi, I see all the profiles in MC Agent (and they are applied to device). When the phone is connected to the server outside the network (via 3G or any external channels, traffic to the server goes through reverse proxy), everything also works, all profiles are applied, but the list of profiles is not displayed on the phone (see topic). Some log's investigation suggests that this list of profiles for MC Agent is an XML document that does not come from the deployment serer to the phone due to the presence of reverse proxy. This is not fatal, but causes inconvenience in cases of remote troubleshooting involving the telephone operator. What settings can you advise for network diagram and|or reverse proxy to correct the situation? By the way, there is a working version of MC 12.2.0.23465, which is not behind the reverse proxy, but behind the NAT, and there the profiles are displayed normally on enrolled phones.