![Philips Hue on Twitter: "@hgtenback Zeker, Harm! We adviseren je om de app te verwijderen, je telefoon opnieuw op te starten, de app opnieuw te installeren en het dan nogmaals te proberen. Philips Hue on Twitter: "@hgtenback Zeker, Harm! We adviseren je om de app te verwijderen, je telefoon opnieuw op te starten, de app opnieuw te installeren en het dan nogmaals te proberen.](https://pbs.twimg.com/media/DeoT1t3X0AEu0fA.jpg)
Philips Hue on Twitter: "@hgtenback Zeker, Harm! We adviseren je om de app te verwijderen, je telefoon opnieuw op te starten, de app opnieuw te installeren en het dan nogmaals te proberen.
![Philips Hue on Twitter: "@smiller Did you try to put this dumb-bulb in to a different fixture and see if it was reachable then?" / Twitter Philips Hue on Twitter: "@smiller Did you try to put this dumb-bulb in to a different fixture and see if it was reachable then?" / Twitter](https://pbs.twimg.com/media/Co8C_QrUEAQ6rZy.jpg)
Philips Hue on Twitter: "@smiller Did you try to put this dumb-bulb in to a different fixture and see if it was reachable then?" / Twitter
![Help!!! Why can't I find a serial number anywhere on this. I have 5 of the same. None of them will connect with the base either. : r/Hue Help!!! Why can't I find a serial number anywhere on this. I have 5 of the same. None of them will connect with the base either. : r/Hue](https://preview.redd.it/qsa27xpdxk051.jpg?width=640&crop=smart&auto=webp&s=3d891bdc46b637d81030b1b693a931985a36e326)