SGNB addition procedure not successful causes

“SGNB addition procedure is not successful” - a common snag in NSA Attach procedure, with various possible causes.

Here’s a pocket guide to NSA successful call flow, extracted from captured Wireshark PCAP data, highlighting the message sequence (excluding UE side messages).

  1. LTE side pcap snippet
  2. NR side pcap snippet

LinkedIn: :point_down: