After install Symantec Endpoint Protection (SEP) 14 MP1 unmanaged client, "<application name> has changed since the last time you used it. Do you want to allow it to access the network?" dialog appears when application tries to access network
SEP 14 MP1 unmanaged client with SEP Firewall function installed.
This issue is resolved in Symantec Endpoint Protection (SEP) 14 RU1 for fresh installations. For upgrades, please do the following to work around this issue.
Work around:
1. Open SEP client GUI
2. Choose [Change Settings]
3. Click [Configure Settings] for Network and Host Exploit Mitigation.
4. In [Firewall] tab, enable [Enable network application monitoring] once then push OK.
5. Click [Configure Settings] for Network and Host Exploit Mitigation again.
6. disable [Enable network application monitoring] then push OK.
7. Close SEP client GUI.