Why is my ecobee thermostat disconnecting?

Microsoft Windows 7 home premium
June 20, 2020 at 23:30:38
Specs: Windows 10, i7 6700/12 GB RAM
So, we have two furnaces and two ecobee thermostats. It seems like ever since I replaced our router a few months ago, I cant keep the thermostats online. If I go to the thermostat and go through the settings and connect it to the wifi, picking the ssid and entering the wifi password, it stays connected for a few days and drops again. We have a ton of wifi devices. Only the thermostats we have issues with.

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#1
June 21, 2020 at 02:32:19
Presumably these thermostats are Wi-Fi?

You replaced the router?

Possibly the previous router had dedicated ip addresses stored for those thermostats, and the new router doesn’t of course.

The thermostats ought to receive ip addresses from the new router via the router’s DHCP server. If the thermostats have their own DHCP option, that should be disabled.

What make/model is the new router, and exact model etc. of each thermostat?

With that formation likely pholks here can help you reserve specific ip addresses in the the new router for the thermostats. That ought to resolve the problem?


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#2
June 21, 2020 at 09:31:26
Are the stats on the 2.4Ghz WiFi? If so, could the new router be more sensitive to interference, such as from a microwave?

I moved my router to make it easier to hard-wire my PC and TV. Once I did that, my printer - which can only use 2.4Ghz - started intermittently going off-line, requiring a re-start. Basically every other day, on average.

I've recently (2 days ago) switched the 2.4 Ghz network from the default of Channel 11 to Channel 1, which I read might be less prone to interference from microwaves. The printer hasn't gone off-line since then, but the intermittent nature of the issue makes it too soon to call it fixed.

For more info, including a suggestion for a utility that allows you see what's going on in your WiFi environment, check out this thread:

https://www.computing.net/answers/n...

Hope that helps!

message edited by DerbyDad03


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#3
June 21, 2020 at 09:45:52
DD’s idea is sound... and worth investigating. But I’d still ensure the thermostats have designated/fixed/reserved ip addresses provided by the router.

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#4
June 24, 2020 at 05:33:58
So, I found a setting in my router to bind mac addresses to an ip address in the ip pool. I bound the two thermostats. Its been a few days now and they're still online, so fingers crossed....

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