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Forum Discussion

DShier's avatar
DShier
Aspirant
Nov 01, 2021

Firmware Version V1.0.4.120_10.0.91 for R6700v3 -- Slow connections and MS Outlook Sync errors

Hello!  I allowed my R6700v3 (AC1750) router to install the latest firmware update (V1.0.4.120  10.0.91) a few days ago.  Ever since then I've been experiencing slow connection to several web sites a...
FURRYe38's avatar
FURRYe38
Guru - Experienced User
Nov 01, 2021

What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?

Has a factory reset and setup from scratch been performed since last FW update? 

DShier's avatar
DShier
Aspirant
Nov 01, 2021

Thanks for chiming in.  As mentioned above, the router is a Nighthawk® AC1750 Smart WiFi Router - Dual Band Gigabit (R6700v3).

My ISP is Comcast.  The modem they provide (I rent) is an ARRIS Group, Inc. TG4482A installed earlier this year.  By speed test, I'm getting roughly 350 Mb/s download and 18 Mb/s upload to, and through, the router (wired).

I have not done a factory reset on the router, though the thought did cross my mind.

  • plemans's avatar
    plemans
    Guru - Experienced User
    Nov 01, 2021

    One thing you can try first is enabling IPv6.

    If that doesn't help, lIke FURRYe38 mentioned, try the factory reset first on the R6700.

    If that doesn't help, then I'd try downgrading the firmware a version

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Nov 01, 2021

    What mode is the modem working in? The modem you have already has a built in router and wifi.

    This would be a double NAT condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
    https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
    Couple of options,
    1. Configure the modem for transparent bridge or modem only mode. Then use the NG router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.
    2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the NG router gets from the modem.
    3. Or disable all wifi radios on the modem and connect the NG router to the modem, LAN to LAN configure AP mode on the NG router.

    DShier wrote:

    Thanks for chiming in.  As mentioned above, the router is a Nighthawk® AC1750 Smart WiFi Router - Dual Band Gigabit (R6700v3).

    My ISP is Comcast.  The modem they provide (I rent) is an ARRIS Group, Inc. TG4482A installed earlier this year.  By speed test, I'm getting roughly 350 Mb/s download and 18 Mb/s upload to, and through, the router (wired).

    I have not done a factory reset on the router, though the thought did cross my mind.