Hello, we have 8 Nest security cameras on our 1000/30 cable connection which uses around 8Mbps upload at most and runs 24/7.
Any time the cameras are on and I try to play online games, the game lags so bad with actions happening on screen 3-5 seconds after I press the button on the keyboard. As soon as I start to disable cameras, the game works fine. So I need to give the cameras a lower QoS it seems since they seem to be stealing bandwidth from the games, but it doesn’t seem like I should have to as Nest is saying that might impact camera quality. In addition, streaming Chromecast or other things online just grinds to a halt when the cameras are on, even though right now for example they are using 3Mbps total, with 27Mbps still free for upload, yet everything just crawls.
When I go into the QoS settings though there’s no option for IP or MAC on there so how can I handle QoS? It said on another post here to do it by port, but as per Nest support “The Nest cameras use normal SSL, so they are all on port 443.” So how would I do that then as giving port 443 a lower priority than normal traffic I don’t think would be a good idea as tons of things run on that port. In addition, giving the gaming PC a higher priority isn’t an option since one game I play I was told also runs on port 443 over SSL.
Is there a reason the cameras are killing my internet connection as well? Others on Nest forums are saying they have 14 cameras and zero issues with bandwidth, with one guy even telling me to try buying a Ubiquiti router. This is on a Balance 305. 
Thank you.
We’ve run into the same issue (but not with Nest.) One solution we’ve used is to assign the cams to a different subnet and identify that subnet as “guest.” Then, we’d allocate an appropriate group bandwidth reservation to ensure your gaming operation has enough bandwidth. This has not been a perfect solution but it is the best we’ve come up with. It’s certainly helped.
Of course, if you have more than one WAN that opens up an additional possibility – one that will work! 
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Thanks, I ordered a 25/10 DSL connection that I was going to use just for the cameras but I wasn’t sure if that would solve it. I wasn’t sure if the game lags because the cameras taking over the upload bandwidth, or if it’s because the cameras are taking over the bandwidth on the LAN. I’m assuming it’s the internet bandwidth that is causing the issues, it’s just weird that the cameras aren’t even remotely close to using the total available upload bandwidth so not sure why they’d be causing issues for the gaming PC.
I’ve never understood why using a relatively small portion of bandwidth would cause WAN performance to degrade so significantly so can’t help you there. I’d be very surprised if your LAN is causing the bottleneck but an easy way to find out is to ping your router and other devices on your LAN. Generally, I’d hope to see a response of around 1ms or less; a buit more if via wi-fi.
You’ll like having more than 1 WAN. 
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I have 2 at my condo just never felt the need for this home but thinking it will definitely help. I might give your idea though of putting the cameras on a different subnet and flagging that as guest, just to see what that might do also. Maybe my ISP just doesn’t like seeing me upload 60GB a day on a residential connection lol.
