Sangoma Phone Desktop Client - Your credentials are invalid (BUT ARE NOT)

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Hi,

the Sangoma Phone Desktop Client is always bothering me about wrong credentials. As far as I understand, the credentials I use for the UCP should work for the phone client, too. But it’s not working and I am stuck.

I already tried to completely “reset” SangomaConnect disabled Sangoma Talk, renewed the certificates (with Run Domain Action), ran the cloud connect again, walked one more time through the whole admin guide but I always end with this message in the log of den client:

error [2026-07-17T19:48:53.595Z]: {
code: -32602,
message: ‘Invalid method parameter(s) for: login’,
data: ‘Login failed.’
}

What else am I able to do?

Where can I look for the error?

Please help me.

Best regards

Daniel

Did you enable Sangoma Phone Desktop for the user (Admin > User Management > User > Sangoma Phone Desktop)?

Hi joni1802,

thank you for your advice but I already checked that three times including disabling this setting, deleting user-permission, enabeling again. Nothing helped.

As of now I think there is a problem with the underlying certificate as there is a problem with ucp that states the “xhr poll error”, too. But my browser doesn’t complain about any certificate error. Because of that I am not shure atm if this will be the right approach.

All these problems are still because of bugs (as of my opinion) in the routine of rebuilding a phones config, as stated here: PHP-Error after click on "Save and Rebuild Config/Use Selected"

So I will dig further and try to get this working. Any further help is welcome of course!

Best regards