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kevindubs
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RBR50 intermittent DNS lookup issues

I have RBR50 (Firmware V2.7.2.104), with one RBS50 satellite, connected to a CM1000v2 cable modem, Comcast ISP.

Starting 3/14, I sporadically get DNS lookup errors.

I've tried setting DNS servers to a) Get Automatically from ISP b) 75.75.75.75/75.75.76.76 and c) 8.8.8.8/8.8.4.4

same result. When the error happens, I cannot resolve new sites, but things like Netflix continue to stream fine.

 

On the router, if I go into Internet Setup and click the Test button, the light ring on the router goes blinking white, then all is fine for a while.

 

On 3/15, the issue occurred about 5 times during the day and 3 during the evening.

 

I also tried power cycling the modem and router, no luck.

 

We live in an apartment building, both my wife and I working from home. We haven't moved or disconnected anything in months.

 

Any ideas?

 

Thanks

Model: CM1000|Ultra-High Speed Cable Modem—DOCSIS® 3.1 Ready, RBR50|Orbi AC3000 Tri-band WiFi Router
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