Forum Discussion

Apprentice

Sep 17, 2020

Intermittent DNS lookup failures on RBR850

Intermittent DNS lookup failures RBR850 I've been using the Orbi RBR850 for several months now and I'm constantly having issues with DNS that I've NEVER experienced with any other router I've ever u...

FURRYe38

Guru - Experienced User

Dec 05, 2020

Try this:

https://community.netgear.com/t5/Orbi-AX/Intermittent-DNS-lookup-failures-on-RBR850/m-p/2016769/highlight/true#M9965

https://community.netgear.com/t5/Orbi-AX/DNS-PROBE-FINISHED-NXDOMAIN-errors-on-RBR850/m-p/2017793/highlight/true#M10049

GTRdone wrote:
On my RBR750....Costco edition (Tried inserting Model in above header but text disappears)
Results-after disabling the Armor anti-virus, disabling IPV6 in the computers and the Orbi, I am still experiencing intermittent page loading errors. In Firefox, I got several that read: "HMM We're having trouble finding that site".

Reloading the page is successful.

Thanks all for the feedback and for taking time to try to track this down.

musicbravo

Guide

Dec 07, 2020

I dont want to speak too soon, but I think I have cracked it. I have been running for 24hours without a DNS failure. My current setup.

Virgin Superhub 3ac in modem mode. RBR850 in router mode (Factory reset). Crucially I changed DNS to Google DNS on router and in advanced IPV6 settings, instead of selecting disabled, I changed it to Auto detect. Once applied this then changed to 6to4. Now I knoe for a fact my ISP do not support IPV6, so I dont know why this has worked. However, it seems to be working well at the moment.

I have said this before, but this is genuinely the longest I have had it running in router mode without a hitch. Try it, and let me know how you get on. I will be feeding this info back to the devs/technicians