Cisco Anyconnect - " VPN Server Could not parse request "

[Tiasan21]

I was unable to connect to a remote VPN due to the error message " VPN Server Could not parse request." Right after authenticating with the user's credentials, it doesn't prompt for MFA and then shows that error message. 

[Mloraditch]

There is a known cisco bug related to the error: https://bst.cisco.com/bugsearch/bug/CSCwh17392?rfs=qvred

Is this is MAC? or have you recently updated your client profile? There could be something misformatted/typed in the XML

[Tiasan21]

Good question,

We have recently modified both the Identifier Entity ID & Reply URL to point to the new cisco client vpn name. However, the SMAL Certificate is still the same we haven't modify so it looks like its pointing to old the Entity ID & Reply URL that we initially configured, which now makes sense why it doesn't work, shall we removed the old SMAL Signing Certificate because its pointing to old vpn name, then updated the new SMAL Signing Certificate on the cloud. 

[Mloraditch]

Yes that makes sense once all is updated you should be good

[Tiasan21]

Thank you, will keep you posted

[Tiasan21]

No its not a MAC, its a new vpn set up. What could go worng with the misformatted/typed in the XML what shall we look for