1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
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!

RT-AX88U - WAN NAT Type Symmetric vs Full Cone Error Message

Discussion in 'Asuswrt-Merlin' started by JohnSmith, Jun 19, 2019.

  1. JohnSmith

    JohnSmith Regular Contributor

    May 2, 2018
    Info: RT-AX88U - V384.11_2 Final FW - Uptime 29+ Days

    WAN NAT Types:

    With Full Cone (was recommended for Open NAT for Steam Games as example):

    These error messages show up constantly in System Log
    - kernel: nf_conntrack: expectation table full

    With Symmetric:

    No error messages.

    Any ideas, concerns, or are these just insignificant error message to ignore?
    Last edited: Jun 20, 2019
    Vexira likes this.
  2. Vexira

    Vexira Very Senior Member

    Jan 20, 2017
    I have the same error messages, I think I read a thread about it being something to not worrry about and Merlin was aware of it, I'm not sure a fix was ever released.

    It's probably best for @RMerlin to weigh in on it, if there is any changes since that thread was up.

    I'm half thinking it's to do with adaptive QoS? Mabye I'm not sure.