Migration Assistant reports Can't communicate with server

[Brian Moore]

Within an administrative session with our Confluence Server instance, I started the Migration Assistant. When the Assistant launches, it throws a window reporting,

"We can't communicate with your server

We're having trouble communicating with your server instance. Please try again. If this doesn't fix the issue, contact support for help."

I restarted my browser, logged in again (via Okta, I'll tell you in case that makes a difference), started the Migration Assistant again. Still no joy.

Server SEN: SEN-6246747

Cloud SEN: SEN-31662493 (trial)

Thank you,

Brian

[Robert Wen]

Have you added the following domains/CIDR ranges in your firewall's allowlist?  Here's the knowledgebase article that should help:

https://confluence.atlassian.com/confkb/connect-the-confluence-cloud-migration-assistant-to-atlassian-cloud-976753742.html

[SriKumar P]

Hi @Brian Moore

Welcome to the Atlassian Community. 

We understand that you are facing any issue with Connectivity when attempting to use the migration assistance. Could you please check Step #9 in the below Confluence pre-migration checklist document and make sure all Atlassian domains or endpoints you need to allow in your firewall are done. 

• Confluence pre-migration checklist

Let us know if the above information helps.

Regards,
Sri Kumar