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!

Featured Phicomm K3C AC1900 MU-MIMO Gigabit Router Reviewed

Discussion in 'Wireless Article Discussions' started by thiggins, Mar 20, 2018.

  1. Easy Rhino

    Easy Rhino Occasional Visitor

    Joined:
    Mar 20, 2018
    Messages:
    46
    I've been slowly exchanging emails with Phicomm's tech support in China regarding woes working this as an AP. No resolution yet, I've tried setting it up as a router-behind-myrouter and it's actually been working okay for a few days now.

    Right now it's just PPTP and L2TP.

    FWIW... I was able to set up L2tP with a free VPN service that I activated just for testing (uh... SecurityKISS), and it seemed to work. speedtest results were significantly slower but I don't know if that's due to the router or the service.
     
  2. Please support SNBForums! Just click on this link before you buy something from Amazon and we'll get a small commission on anything you buy. Thanks!
  3. Easy Rhino

    Easy Rhino Occasional Visitor

    Joined:
    Mar 20, 2018
    Messages:
    46
    So to follow up on tidbits from my exchange with Phicomm support.

    With regard to unreliable behavior as an AP, they said that it was designed to be used as a main router, and that "AP may not be the best way"... so that's disappointing.

    I asked why the home page CPU utilization graph always reports the CPU as 800mhz. And she said the CPU is two cores running at 800mhz. Interesting, it conflicts with the review, although Intel isn't very forthcoming about clock rates on these CPUs, although the Koolshare teardown part number seems to match that of a 1600mhz Intel part.

    Finally, she mentioned no plans for OpenVPN support.
     
  4. CrystalLattice

    CrystalLattice Occasional Visitor

    Joined:
    Jan 9, 2017
    Messages:
    41
    band steering works under single ssid setting, as observed on app. can also divide and handle 16 groups of 3 mu-mimo 1x1 clients on 5ghz, then 16 more clients as su-mimo on 5ghz. handles 64 clients on su-mimo 2.4ghz, for 128 clients total. can only be tested in industrial situation, looks like
     
  5. Internet Man

    Internet Man Regular Contributor

    Joined:
    Sep 1, 2017
    Messages:
    151
    There is a lot of confusion about the specs of the various GRX350 parts.

    It seems likely to me that Intel added the two 800 MHz cores together to reach their 1600 MHz claim.
     
  6. CrystalLattice

    CrystalLattice Occasional Visitor

    Joined:
    Jan 9, 2017
    Messages:
    41
    "With all due respect, Intel does not become confused." As reported by wikidevi, the GRX350 is 1.6ghz clock speed, 2 cores, Mips34kc architecture, Network capability 10G NPU(has 10gBE ethernet network capability). The firmware is flawed. see https://wikidevi.com/wiki/Lantiq
     
    Last edited: Apr 20, 2018 at 11:00 AM
  7. Internet Man

    Internet Man Regular Contributor

    Joined:
    Sep 1, 2017
    Messages:
    151
    WikiDevi is not an authoritative source. I would trust what the firmware reports and the Phicomm support confirms over WikiDevi's guesses.

    If you can find some other source of information that didn't just pull their information from WikiDevi's guess please share it.

    All we get from Intel is "1600MHz" on the Ordering and spec information page but that doesn't even mention whether it is single or dual-core. No speed is listed for the non-1600 GRX350.

    A SmartRG press release for the SR900ac claims that it contains a "Intel® AnyWAN™ SoC GRX350" and "A powerful 1.6GHz dual-core CPU" but I'm still not convinced that they are not just fluffing the number for marketing purposes by calling the 2x 800 MHz cores 1.6 GHz.

    ASUS only claims that the Blue Cave has an Intel dual-core CPU with no mention of its clock frequency. A WikiDevi user tried to change the page to show that the CPU runs at 800 MHz but another user reverted that back to 1.6 GHz possibly just based on the ambiguous 1600MHz claim from Intel. This page says of the Blue Cave, "Network SoC: Intel AnyWAN GRX350 PXB4395EL1600 800MHz Dual Core Three-Thread"

    Perhaps Tim could get an official answer from Phicomm or ASUS or else someone who owns these devices could SSH into them and use some of the techniques described here to determine the clock speed: https://www.snbforums.com/threads/how-to-check-cpu-size-rt-68u.30782/
     
    CrystalLattice likes this.
  8. CrystalLattice

    CrystalLattice Occasional Visitor

    Joined:
    Jan 9, 2017
    Messages:
    41
    Yeah, and The Attacks on 9/11 Were an Inside Job! This is really buggy firmware. List:
    doesnt report cpu freq. right?
    doesnt report cpu cores
    doesnt do "isolate ap"- snb
    doesnt resize browser on pc or ipad
    tells snb it doesnt do intelligent band steering, when it does
    can't be used as AP
    has AUTO radio power reduce!
    it pings sites in china-snb
    cant do most blocking chores-snb
    who knows the security holes, no one has run a security vulnerability scan
    there are no official answers from phicomm,

    the only reason to own this router is experimental, & only if you paid $15. we all love a great conspiracy story! hava great weekend!
     
    Last edited: Apr 21, 2018 at 5:19 PM
  9. Easy Rhino

    Easy Rhino Occasional Visitor

    Joined:
    Mar 20, 2018
    Messages:
    46
    Correction, can't be used as an AP at all. At least not in my house.

    But it would be interesting to determine the real clock speed of this chip more authoritatively. After all, the Asus Blue cave firmware reports three cores, which is probably wrong.
     
    CrystalLattice likes this.
  10. Wutikorn

    Wutikorn Senior Member

    Joined:
    Nov 12, 2015
    Messages:
    427
    Location:
    Thailand
    Could the third one be network accelerator?
     
  11. Internet Man

    Internet Man Regular Contributor

    Joined:
    Sep 1, 2017
    Messages:
    151
    It could be that the CPU supports three threads as described on this page which says, "Network SoC: Intel AnyWAN GRX350 PXB4395EL1600 800MHz Dual Core Three-Thread"

    Kind of like how systems with Intel CPUs that support HyperThreading show more than just the physical cores.
     
    Wutikorn and CrystalLattice like this.
Please support SNBForums! Just click on this link before you buy something from Amazon and we'll get a small commission on anything you buy. Thanks!