Power Platform Community Forum Thread Details

SFTP connector validation issue

Hello,

We have an SFTP server behind firewall with IP whitelist. We have added all IP ranges from our region (UK) as per following page:

https://learn.microsoft.com/en-us/connectors/common/outbound-ip-addresses#power-platform

However workflow checker and automatic validation seems to be using different IP ranges to check workflow. Therefore we are intermittently getting different errors like:

- connection is not valid (editing workflow)

- flow checker

Details:

"error": {

"message": "A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond"

"source": "sftpwithssh-uks.azconn-uks-002.p.azurewebsites.net"

nslookup sftpwithssh-uks.azconn-uks-002.p.azurewebsites.net

Name: waws-prod-ln1-f72e9f0a.sip.p.azurewebsites.windows.net
Address: 51.132.208.94
Aliases: sftpwithssh-uks.azconn-uks-002.p.azurewebsites.net

Source IP is not from the list of possible IP ranges.

The issue is intermittent as it seems like using different sources, however in most cases because of errors it is not even possible to save workflow and apply required changes. Therefore it is very hard to manage workflow as applying any changes or deploying to a different environment may take hours/days.

Despite flow checker shows errors the actual flow works correctly.

Is there known list of IP ranges, which is used by flow checker?

What is the best way to resolve the issue considering that SFTP server is managed by third party, who has many other clients and they are not going to change current setup?

Best regards.

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