RBR50 intermittent DNS lookup issues

Ok so this seems to be working, 24 hrs and no disconnect.

Glad I didn't waste hours doing a factory reset and spend time reconfiguring.

If a factory reset worked for others, great, if you want an alternative, try the below.

Also that is literally the only thing I did, didn't mess with DNS or anything else. 

This did the trick. For those looking 

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archp wrote:
No factory reset here. This is what I did so far, around 4pm Yesterday, I did the following:

Turn off dst, (live in Cali, so changed time zone to Alaska), pointed ntp server to pool.ntp.org.

So far no disconnections, will update if it goes a full 24 hours.

I also emailed the engineering team all my details as well. Will keep you all posted when I hear back.

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This article also includes OpenWRT as specifically vulnerable (the other article mentions Netgear as a manufacturer.  I believe Netgear routers (among many) is based on OpenWRT?

https://www.helpnetsecurity.com/2021/01/19/dnsmasq-vulnerabilities/

Note- I don't know if this is THE issue, especially since Netgear has the annoying habit of NOT stating what their updates address.  I'm just stating a possible source of the issue.

Anything is possible. However since some users have disabled DST or made a change in NTP, possible that these two could be related. Seems that for the most part the problem appears to be over after these changes, until the next time we have the time change. 

Yes Orbi is based off a build of WRT. If you look at the telnet window when you log in, it gives this information. 

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tak1313 wrote:

This article also includes OpenWRT as specifically vulnerable (the other article mentions Netgear as a manufacturer.  I believe Netgear routers (among many) is based on OpenWRT?

 

https://www.helpnetsecurity.com/2021/01/19/dnsmasq-vulnerabilities/

 

Note- I don't know if this is THE issue, especially since Netgear has the annoying habit of NOT stating what their updates address.  I'm just stating a possible source of the issue.

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tak1313 wrote:

Could the DNS problem be related to this, considering it's not affecting all units?

 

https://www.csoonline.com/article/3603929/flaws-in-widely-used-dnsmasq-software-leave-millions-of-linux-based-devices-exposed.html

 

I also have an Asus router and noticed their most recent update specifically mentions it fixes the above situation - unlike Netgear that never states what their updates are doing.

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and of course there are generic release notes

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archp wrote:
This is what the netgear engineer said:


We have identified that the traffic meter will cause problem while auto daylight saving time enabled. Since you turn off auto daylight saving time, the issue should be go away. Turn off traffic meter would also avoid the issue. We are working on a trial fix firmware. Will provide to you once it’s ready. Thanks.

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trial fix firmware???

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archp wrote:
Maybe he meant a beta firmware to test before they release an official one? That's literally all that was said.

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Thanks

That's what appears to be happening when they decide to put the newest and greatest firmware update on the server for all to use.  Then here comes the 'I gotta it have bunch', who in turn become our beta testers.

Go to be a better method.