ERROR: Invalid APN[apn]

[ali-iitd]

I am using the 4g setup, while connecting my UE with network I am facing 2 errors with the same USIM of

1. [esm] ERROR: Invalid APN[apn] (../src/mme/esm-handler.c:261)

APN in HSS created with same SST:1

pcap file attached ->

pcap.zip

While looking through pcap file, it shows
47 37.393118 172.22.0.9 172.22.0.22 S1AP/NAS-EPS 120 SACK (Ack=3, Arwnd=106496) , DownlinkNASTransport, Attach reject (ESM failure), PDN connectivity reject (Missing or unknown APN)

[herlesupreeth]

Please check the APN settings on your phone. Its not correctly configured, you have configured APN as 'apn' rather than 'internet'