IKE phase-2 negotiation is failed as initiator, quick mode. Failed SA: 126.96.36.199-188.8.131.52 message id:0x43D098BB. Due to negotiation timeout
The most common phase-2 failure is due to Proxy ID mismatch.
To resolve Proxy ID mismatch, please try the following:
Check the Proxy ID settings on the Palo Alto Networks firewall and the firewall on the other side. Note: Proxy ID for other firewall vendors may be referred to as the Access List or Access Control List (ACL).
Also, check the IPSec crypto to ensure that the proposals match on both sides.