In Location A, our users have a mapping drive over the WAN, the mapping will be disconnected in short period when the WAE set up in between LAN switch and WAN router. Another service - content filtering (using 8e6 R3000), it cannot be work in location A after WAE512 installed. It is using Netbios to map the R3000 on client PC, then to define the user profile.
The connectivity is
(Client PC) <-> (LAN Switch) <-> (WAE 512) <-> (WAN Router in Location A) <-> (WAN Router in Location B) <-> (WAE 612) <-> (LAN Switch) <-> (8e6 R3000) <-> (FW) <-> (Internet Router)
WAE OS version is 4.0.13