In one example embodiment and mode shown in FIG. 20A, the report message of act 20-11 may be an RRC message of act 20-11 directed to the Donor 1, e.g., to wireless access node 22-1. As Act 20A-12, the Donor 2, e.g., wireless access node 22-2, may transfer the report message to the Donor 1 using an inter-node message on the wired backhaul link 32. Upon receipt of the report message, the Donor 1 may coordinate with the Donor 2 to deactivate the problematic signaling data path (e.g. the first signaling data path SRB_f), as shown in Act 20A-13. In one implementation, the wireless access node 22-1 aka Donor 1, now recognizing that SRB_f is torn down, may reconfigure the Child Node 30 with a new SRB configuration, e.g. releasing SRB_f. by sending another RRCReconfiguration. In parallel, wireless access node 22-1 may also use the F1-AP* to update the routing configuration of the Child Node 30, if the Child Node 30 is an IAB-node.
