ASUS AC5300 and Honeywell Lyric T5 Thermostat

[TerryM]

Hello All, (This is a duplicate post. I posted in the wrong forum originally)
I'm hoping someone can help me troubleshoot my issue. I have an ASUS AC5300 and I am trying to connect my Honeywell Smart Thermostat to my wifi network using their Android Phone App. The phone app tries to connect the thermostat to the home wifi network. It only works on a 2.4 Ghz band. The connection fails every time with no real error message displayed. I know it is a setting in my router because when I setup a mobile hotspot using a different phone, then connect the phone and thermostat to the mobile hotspot it works.

Here are the specs that the honeywell router requires:


· Ensure you are connecting to a 2.4 GHz network. Honeywell Wi-Fi thermostats are not compatible with 5 GHz network.

· Ensure the router is set for DHCP.

· Ensure the following ports are open: 114. (Lyric T Series also require ports 5671, 5672 to be open)

· Ensure the network is a standard home network and does not require logging in from a web page such as a guest network.

· Ensure the Wi-Fi network is using one of the following security protocols:

· OPEN

· WEP PSK

· WPA TKIP PSK

· WPA2 AES PSK

· WPA2 MIXED PSK

· Honeywell Wi-Fi thermostats are NOT compatible with the following security protocols:

· WPA AES PSK

· WPA2 TKIP PSK

I am fairly sure I meet all of these requirements but I don't know if a firewall in the router is blocking those ports. Any help will be greatly appreciated!

Thanks,

Terry

 

[TerryM]

I figured it out. The Thermostat and Phone App requires the wifi network to be on channel 1. Mine was set to Auto which configured it to channel 5.

 

[CaptainSTX]

It is very strange, that an app and the thermostat only work on Channel 1. My Honeywell 6550 is currently using Channel 6, but I occassionally have to change the wifi channel I use for my IoT devices to avoid congestion from neighbor's networks and it has never caused a problem for my thermostat to connect.

 

[TerryM]

I can do more testing. It was set to Auto, perhaps that was causing the problem.

 

[TerryM]

Well I'm back to square one. Last night, my tstat notified me that it was offline. I could not reconnect it. I deleted the tstat and tried to re-add it, but it failed everytime. I changed the channel and still no luck. I reset the tstat, no luck. I know it is not the tstat, because I have two of them and neither of them were connecting. I'm not having much luck with the honeywell smart tstats. I may have to switch to one of the other brands.

 

[sfx2000]

check the setting for airtime fairness

 

[TerryM]

check the setting for airtime fairness

Thank you! That did the trick.

 

[agilani]

Expect dhcp issues and every once in awhile having to reset the wireless to keep it working. It doesn't connect at very high speeds either.

 

[tallytr]

Me having big issues with Honeywell 9000 wi-fi series thermostat TH9320wf5003. Both with Merlin and Asus 3.0.0.4.384_45149 firmware I can't connect anymore, it connects just fine with security disabled (open network) and when
using iPhone as hotspot but as soon as I enable WPA2-Personal I can't connect, get "can't obtain IP address and "wrong Wi-Fi password" messages....
Go figure, I tried all settings, nothing works.
Anybody?

 

[OzarkEdge]

Me having big issues with Honeywell 9000 wi-fi series thermostat TH9320wf5003. Both with Merlin and Asus 3.0.0.4.384_45149 firmware I can't connect anymore, it connects just fine with security disabled (open network) and when
using iPhone as hotspot but as soon as I enable WPA2-Personal I can't connect, get "can't obtain IP address and "wrong Wi-Fi password" messages....
Go figure, I tried all settings, nothing works.
Anybody?

Does it support WPA2?

OE

 

[OzarkEdge]

It does (WPA2_AES_PSK) same as WPA2-Personal, used to work just fine just lately both our thermostats disconnected and I wasn't able to reconnect with security. Had to use open Guest network with MAC Filtering "Accept"....
According to Honeywell tech service both our thermostats are on latest pushed firmware and it's a router issue for sure...

Oh really... they push unsolicited firmware updates? If so, that's a homeowner headache waiting to happen, imo.

Will they connect to an old/spare router?

OE

 

[OzarkEdge]

Yes, they have access to the thermostat and keep it updated, that is OK with me. Both stats connect just fine to iPhone hotspot and to Asus RT-AC86U router with security disabled....

I assume you mean the hotspot has security enabled?

Did you disable Airtime Fairness?

If you hate WiFi, and like IoTs that update themselves, you're in for a bumpy ride.

I suppose you reset your router after changing the firmware?

OE

 

[tallytr]

That surprised me.
Solution. Used our second RT-AC-86U and right away everything connected just fine.
> Our first RT-AC96U is defective. Started losing connections, then noticed wireless printer would not connect anymore....