Losing Internet connection

[BanditMask]

My new router consistently loses connection to my ISP cable modem.

Logs

[DumaOS] DHCP lease change., Thursday, March 07, 2019 17:15:56
[DumaOS] DHCP new event., Thursday, March 07, 2019 17:15:56

I've read through posts, disabled Xbox Instant on, hard set IPs, reduced range 200-254

any fix, it seems to be a reoccurring issue among others on the forum. I'm using the latest firmware 

[FURRYe38]

What FW is currently loaded?
What is the Mfr and model# of the ISP modem the NG router is connected too?

You might revert to v32

[BanditMask]

V2.3.2.40

Arris TM1602

[Netduma-Fraser]

You said you set static/reserved IPs was this just for your LAN devices? If so I would recommend doing it in Settings > Internet Setup.

[BanditMask]

I don't have this option. No access to the modem.

My Nighthawk R6400 never had this issue.

[Netduma-Fraser]

Not on the modem I mean on the router. Routerlogin.net > Settings > Internet Setup, switch from dynamic to static

[BanditMask]

Can you do that if the ISP is using DHCP? Wouldn't you need to have them create and assign a static address for that to work?

in any case, I've had them give me a brand new modem of a different manufacturer. Let's see if that changes anything.

[Netduma-Fraser]

Yes you can, no it can be done from the router without having to do that.

Okay great, keep us updated with what happens!

[BanditMask]

Still losing Internet connection, seems that the intervals in between are longer now though. As to your suggestion, how do I know the static IP to set? According to my ISP only upgrading to a business account has the ability for static IP. Is there another way?

[FURRYe38]

I would revert to v32 FW version on the XR router. 

Most ISPs will not allow for static WAN IPs to be set unless you pay for it or comes on there Business class packages. 

Can you try a different ISP modem? Arris TMs are not the greatest. 

[Netduma_Jack]

Try going back one firmware as Furry suggested, and then see if it's better:

https://kb.netgear.com/000060127/XR500-Firmware-Version-2-3-2-32

[BanditMask]

Downgrading the firmware seems to have worked. I'll post again if it restarts.

Since it happened with two different modems by different manufacturers, any idea if this might be fixed in a later version?

I'd hate to never be able to update my firmware again.

[FURRYe38]

v40 seems to have problems with some users. I presume NG will be making changes. 

Your ok to run v32 if it works for you and it provides all you need. You don't always have to update. Unless there maybe some security concerns. 

---

@BanditMask wrote:

Downgrading the firmware seems to have worked. I'll post again if it restarts.

Since it happened with two different modems by different manufacturers, any idea if this might be fixed in a later version?

I'd hate to never be able to update my firmware again.

---

[Netduma_Jack]

I expect the version after .40 will be more stable, so you should be ok to upgrade to it once it's released.