Trying Active-Active-Standby in LAB, 2 devices show as offline.

Hey Gents, This was the plan: BIGIP1-A TG1 BIGIP2-A TG2 BIGIP3-S For both TG1 and TG2 But right now all TGs are only ACTIVE on BIGIP3 and shows as "Initializing / Not Synced". On BIGIP3 I...