Dismiss Notice

Welcome To SNBForums

SNBForums is a community for anyone who wants to learn about or discuss the latest in wireless routers, network storage and the ins and outs of building and maintaining a small network.

If you'd like to post a question, simply register and have at it!

While you're at it, please check out SmallNetBuilder for product reviews and our famous Router Charts, Ranker and plenty more!

ASUS RT-AC66U

Discussion in 'Asuswrt-Merlin' started by Tony Abraham, Sep 13, 2017.

  1. Tony Abraham

    Tony Abraham New Around Here

    Joined:
    Sep 13, 2017
    Messages:
    7
    Hi,

    I have been doing a bit of research into this problem I am experiencing but cannot find a definitive answer. I have setup my OOTB RT-AC66U with OpenVPN client, I used NordVPN as my VPN provider. No matter what server I connect to I cannot seem to get more than 7MB down / 7MB up - I get about 30 / 10 without VPN.

    Would installing Asuswrt-Merlin improve these speeds? I have read that the CPU is the limitation on this router, can I overclock with the Merlin firmware to improve the speeds? I don't expect it to be as good as no VPN but would help if I could get a bit more from it.

    Thanks for your help

    Tony
     
  2. Jack Yaz

    Jack Yaz Very Senior Member

    Joined:
    Apr 20, 2017
    Messages:
    656
    It's a 600MHZ CPU.

    What encryption? 128 will be faster than 256.
     
  3. Tony Abraham

    Tony Abraham New Around Here

    Joined:
    Sep 13, 2017
    Messages:
    7
    I'm not sure, sorry I am not massively clued up on this. I just uploaded the file provided by NordVPN. Where do I check this?
     
  4. RMerlin

    RMerlin Part of the Furniture

    Joined:
    Apr 14, 2012
    Messages:
    24,604
    Location:
    Canada
    My firmware is a bit more optimized for OpenVPN, however for your particular model you won't see a big difference. Your CPU is the bottleneck.
     
  5. Tony Abraham

    Tony Abraham New Around Here

    Joined:
    Sep 13, 2017
    Messages:
    7
    What about overclocking the CPU? I am interested to know about changing the encryption, does the VPN provider have to support 128?

    Thanks for your help
     
  6. RMerlin

    RMerlin Part of the Furniture

    Joined:
    Apr 14, 2012
    Messages:
    24,604
    Location:
    Canada
    Those routers don't really overclock, and you wouldn't get much of a difference anyway.

    Yes, the cipher is determined by the provider. Check on your OpenVPN client configuration page on the router, see if it's AES-128-CBC or AES-256-CBC (the two most commonly supported ciphers). If it's AES-256-CBC, check with them if they have other configuration files/servers that support AES-128-CBC instead, and import that config file.
     
  7. Veky

    Veky Occasional Visitor

    Joined:
    Oct 3, 2014
    Messages:
    47
    Location:
    Croatia
    I'm getting around 9 Mbps on a RT-N66U with AES-256-GCM. It has the same CPU so you shouldn't expect much more.
     

Share This Page