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Forum Discussion

Benthebot's avatar
Benthebot
Initiate
Jul 18, 2019

R6700v3 New Firmware Slow Speeds

Hi.    I have a Netgear 6700v3 connected to a Netgear CM600 modem. I pay for 300Mbps download and 30Mbps upload. I usually get 300-340Mbps download during speed tests. I noticed recently that I was...
a531's avatar
a531
Aspirant
Aug 05, 2019

Worked for me also, before rolling back around 200 mbps, after rollback 497mbps!

Thanks for the help!

  • Akrios's avatar
    Akrios
    Initiate
    Aug 11, 2019
    Myself and a friend had the same issue. I noticed slow download speeds the other day, ran a couple speed tests and confirmed something was up. We both have gigabit FIOS and I could not get more than 200-250Mbps up and down. I tried factory resets etc and nothing worked. Both speedtest.net and Verizon’s speed test to their network which consistently gets high 800s to 900s was getting sub 300. Reset my ONT, plugged into ONT directly and the speeds were better. Eventually I tried rolling back from 1.0.4 to 1.0.3 and the speeds were fixed!

    I rolled back and turned auto update off. Really annoying the new firmware was causing this issue. Wasted a day or two troubleshooting and even calling Verizon. Hope it gets fixed soon.

    Also, this was on the r6400v2, not the v3!! So it effected the v2 as well.
    • stanjohn's avatar
      stanjohn
      Aspirant
      Aug 12, 2019

      Classic memory leak in firmware, do they test this stuff ? Truned off all features I could, even 5G radio, it helps but still have to reboot every day to get performance back. Also down graded version to V1.0.3.66_10.0.50 from current 1.0.4.78_10.0.55 it helped a little but this problem has been in the last two release time to fix this passed, who ever is testing and coding need more training.

      • stanjohn's avatar
        stanjohn
        Aspirant
        Aug 12, 2019

        Trying V1.0.2.52_1.0.39 firware now, yes I factory reset after loading new fireware.

         

        This memory leak seems related to the speed of the connection between the router and modem, wonder if back pressure/flow control from the router to the modem is working ? My speculation is when the router is flooded with data the buffers in the router's memory doesn't recover and some memory is lost. Over time this causes the router to slow down and a reboot is a way to recover the lost memory.