IKEv1 tunnel establishment fails due to "no ID nor CERT found"

Recently I have purchased a Microtik Router and it was running below software

[admin@MikroTik] > /system/identity/export

2026-04-20 18:05:59 by RouterOS 7.20.7

software id = 5XBX-5LQ7

model = RB5009UPr+S+

serial number = HM60B35VNMM

On otherend I have my router (Adtran). When I try to establish IKEv1 tunnel, it fails with below log. Can someone help me out to understand the error?

2026-04-20 18:05:00 ipsec,error no ID nor CERT found.
2026-04-20 18:05:00 ipsec,debug Discarding CERT: does not match ID.