How to roll back firmware?

Question

Hi! 
 After upgrading to SFOS 17.0.6 MR-6 my ipsec site to site VPNs has not been working. 
 i get

4 
 Mar 15 2018 
 00:12:17

Local:89.27.xx.xx:4500 Remote:62.236.xx.xx:4500 Username:62.236.xx.xx IKEv2 Negotiation aborted due to ERROR: Platform errors

on the other end. 
 
 on the firmware page I have a yellow dot (warning for something, dunno what!) on the active mr6 image. 
 The other image is mr5, but when I click the "boot firmware image", I get an error 
 "When HA is configured, booting cluster device(s) with the non-active firmware is not allowed" 
 
 How can I roll back to MR5?

Jelle · Answer

Yellow dot doesn't mean error or warning but just active. 
 
 There have been changes to IPsec in MR6. Especially look at remote gateway and VPN-IDs. Try changing VPN-IDs to IP-Address if currently set do DNS.