Hidemyass does work on the RT-N66U with Merlin build, I got it working with 18.104.22.168.372.31 with help form HMA support.
The problem most people have had was that the Tomato Setup tutorial on HMA web.site was WRONG !!! Incredible...
So here are the right parameters to include on the ASUSWRT-Merlin GUI:
OPENVPN Client Settings
Start with WAN: YES
Interface Type: TUN
Server Address: your choice of HMA server
for TCP 53
Authorization mode: TLS
Username/Password Authentication: Yes
Username: your HMA username
Password: your HMA password
Username Auth. Only: No
Extra HMAC authorization: Disabled
Create NAT on tunnel: Yes
Poll Interval: 0
Redirect Internet traffic:Yes
Accept DNS Configuration: Disabled
Encryption cipher: BF-CBC
TLS Renegotiation Time: -1
Connection Retry: 30
Verify Server Certificate: No
Custom Configuration: ns-cert-type server
Open VPN Keys
On each of the three certificates needed: Certificate Authority, Client certificate and Client key ONLY include the text from the HMA provided certificates from and including the line "-----BEGIN CERTIFICATE-----" to and including the line: "-----END CERTIFICATE-----". With no extra empy lines or other information.
That never exceeds field size on ASUSWRT-Merlin GUI and is rarely longer than 1500 characters.
WAN / Internet Settings
"WAN DNS Setting" should be:
Connect to DNS Server automatically No
DNS Server1: your choice of DNS Server
DNS Server2: your choice of alternate DNS Server
Suggestions can be found on:http://compnetworking.about.com/od/d...ns-servers.htm
As a final commennt the support person form HMA indicated that they expect to release official ASUSWRT-Merlin support soon, including automated installers for those inexperienced with routers...
Enjoy your great routers with HMA! and Merlin's great software !!
Merlin, thanks again !!