ChannelCreate failing

Questions
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1

Anyone experiencing channelcreate failing? I have had different errors over the past two days. but use the channel communications to link some of my systems so this is a large problem for me.
The current error is: Could not connect to the server “mqtts://channelbroker-mqtt.wolframcloud.com:8883/”.

Above error return is from ChannelCreate[channelName] command. Java seems to load and reinstall properly.

I have a connection to Wolfram cloud and used channel based communication for several years now with reasonable success.

I can not remember if the error is prior to upgrading to 12.1 but I have just upgraded to 12.1 to try and fix. The only strange thing i see is CloudConnect[] returns email concatenated with displayname=
“myemail@ahoo.com.sgdisplayname=”

Does anyone have details on how to connect to a different broker (eg Amazon IOT). This would be also a fine solution for me.

S.

2

Is the issue as simple as using the function CreateChannel rather than ChannelCreate?

3

Sorry typo on my part for the example.
Am using CreateChannel and it fails

shopkey = "xxxxx";
shopchannel = CreateChannel[shopkey]

ChannelObject::connfail: Could not connect to the server "mqtts://channelbroker-mqtt.wolframcloud.com:8883/".

Above code is failing for past two days, but used to work for over a year.

4

i’m not even calling anything and I get this error everytime I start a notebook

ChannelListen::subx: Failed to subscribe to the channel mqtts://channelbroker-mqtt.wolframcloud.com:8883/users/firstname.lastname@domain.edu/ChatInvitations. The channel may not exist or you may not have access to it.

(ids removed)
No idea where in the startup code this si called…

5

The channel service is a publish and subscribe service provided by Wolfram. It works superbly when it works. I have been using it for about two years now. Currently, I have a trouble ticket in and they have it partially fixed
For me it is working on:
raspberry pi Ver 12.0
failing mac os x ver 12.1

What version are you using. I will keep you updated as they work my trouble ticket.

For your particular problem try running ChannelListeners[] and RemoveChannelListener[x] where x is from the ChannelListeners[] or RemoveChannelListener[#] & /@ ChannelListeners[]

6

There were two issues. One was the channel broker was down over the weekend.
The second was the CloudConnect was returning an invalid value. I disconnected from the cloud and reconnected and this fixed the seccond issue.

CloudDisconnect[]
CloudConnect[]

Good luck.