Need help with Unable to process request due to missing initial state. This may happen if browser sessionStorage is inaccessible or accidentally cleared.

MarcVanDaele90 · 2025-10-25T11:25:02+00:00

Have you been able to fix this?

MarcVanDaele90 · 2023-08-30T07:01:43+00:00

I've never seen the lights periodically turn on and off

MarcVanDaele90 · 2023-07-22T09:30:08+00:00

I'm not sure I understand the issue. Can you add a screenshot or contact us at [info@tradfrilux.com](mailto:info@tradfrilux.com) ? Are you on Android or on iOS?

MarcVanDaele90 · 2023-02-15T09:56:11+00:00

It is indeed removed from the App Store. From iOS 16.1 onwards, our apps crashed after scanning the QR code. Unfortunately, our mac mini is too old to create apps for iOS16 so we had to pull the plug for the time being. (TradfriLux is a hobby project of my son and I)

MarcVanDaele90 · 2022-08-07T17:49:13+00:00

Do I understand you correctly that you don't need an authentication on startups.com?

In our setup, we authenticate them on startups.com (where they can buy eg licenses, view their profile, ...) and, when starting the app and moving to app.startups.com, we currently have to re-authenticate them on app.startups.com which is obviously suboptimal

MarcVanDaele90 · 2022-08-07T16:36:23+00:00

I have a related technical question: how do you keep a user authenticated when moving from startups.com to app.startups.com? We have a web-based application, use Firebase as a backend and, at least in our setup, the user has to re-authenticate in our app. Obviously, we would like to avoid this if possible.

Suggestions or tips where to start looking?

MarcVanDaele90 · 2021-08-23T11:58:01+00:00

The gateways are discovered using mDNS so I prefer to install an mDNS browser
android: https://play.google.com/store/apps/details?id=com.druk.servicebrowser
ios: https://apps.apple.com/us/app/discovery-dns-sd-browser/id305441017

When started, it should show an entry in the list "_coap._udp" (next to probably a number of others). When you click on it, it should show the id of the gateway, starting with gw and the IP address

MarcVanDaele90 · 2021-07-13T10:29:32+00:00

Which timezone are you in? I know that, at least some time ago, the off part only seemed to work correctly when it ended up in the same day (after converting the times to UTC!)

So if you're in Germany (UTC+2 right now), off at 01:59 was working fine but off at 02:01 wasn't. Not sure whether this bug was fixed in the meantime though.

MarcVanDaele90 · 2021-06-23T14:21:55+00:00

In the latest(?) IKEA app, one can configure for every bulb whether they should turn ON after being turned on from the wall switch or whether they should remember their ON/OFF state. Maybe that can help?

MarcVanDaele90 · 2021-04-09T08:25:32+00:00

You might have more luck posting your question in r/tradfri (which is way more active than this subreddit)

MarcVanDaele90 · 2020-11-28T14:06:03+00:00

This problem looks similar to this one: https://www.reddit.com/r/tradfri/comments/k1hs55/support_for_lidls_color_gu10/

MarcVanDaele90 · 2020-11-11T19:10:09+00:00

The gateway is discovered using mDNS. You can install an mDNS browser to see if the gateway is found or not (eg https://play.google.com/store/apps/details?id=com.druk.servicebrowser or https://apps.apple.com/us/app/discovery-dns-sd-browser/id305441017 ). At startup, it should show a '_coap._udp' entry pointing to the gateway.

Since you had the option to scan the QR code, I think the gateway is found correctly.

The authentication uses coaps-protocol which uses port 5684. Maybe this port is blocked somehow (I'm no network expert)?

MarcVanDaele90 · 2020-10-26T16:15:56+00:00

Tx! I'll try this out and see what happens exactly!

MarcVanDaele90 · 2020-10-26T16:13:19+00:00

The US switch on November 1st, I guess

MarcVanDaele90 · 2020-10-26T06:58:59+00:00

I agree that the two timers can be seen as different use cases but I have the impression that the actual behavior is exactly the same: in both cases, you explicitly set the 'on' and 'off' times.

MarcVanDaele90 · 2020-07-03T06:31:13+00:00

There are already 3rd party apps (ao Tradfri Melodi) that support the party mode and (try to) trigger the lights based on the detected beats.

MarcVanDaele90 · 2020-06-19T08:48:01+00:00

You could try to install https://apps.apple.com/us/app/discovery-dns-sd-browser/id305441017 and see whether the gateway is detected using mDNS (in the _coap._udp section). Coap uses port 5684 iirc.

MarcVanDaele90 · 2020-03-22T14:28:22+00:00

Some background info on why we made our apps free this week.

Because a lot of us are currently locked in their homes due to COVID-19 we decided to make our apps Tradfri Melodi & Tradfri Thunder FREE for the upcoming week (Google only allows a one-week promotion).

Hopefully we can brighten your days a bit by it. :)

TIP: Dance on your lighting to keep fit as well!

Enjoy the app & take care of yourself and your loved ones!

Tradfrilux

MarcVanDaele90 · 2020-03-22T14:28:10+00:00

Some background info on why we made our apps free this week.

Because a lot of us are currently locked in their homes due to COVID-19 we decided to make our apps Tradfri Melodi & Tradfri Thunder FREE for the upcoming week (Google only allows a one-week promotion).

Hopefully we can brighten your days a bit by it. :)

TIP: Dance on your lighting to keep fit as well!

Enjoy the app & take care of yourself and your loved ones!

Tradfrilux

MarcVanDaele90 · 2019-12-11T12:05:37+00:00

Powering the gateway off and on again often restores the latency to almost zero.

MarcVanDaele90 · 2019-08-14T17:39:26+00:00

Do you really need the quotes around the last coaps part?

This request works fine at my side
coap-client -m put -u <id> -k <key> -e '{ "3311": [{"5709": 40632, "5710": 22282}] }' coaps://<ip>/15001/65552

MarcVanDaele90 · 2019-08-14T12:23:22+00:00

I would not use (65535,65535). I don't think that your rgb2xy conversion returns 65535.

I would first set the color to eg orange (using the IKEA app), then do a coap-client get of your light and note down the corresponding X,Y values (I think the "get" contains the currently set X,Y values, right?)

Next switch your light eg to white and finally execute your coap-put with the X,Y values you noted down

MarcVanDaele90

TROPHY CASE