COST UE cannot connect to Internet

[chonghua1]

I have set up a 5G SA system with USRP B210 and Goole pixel7A, the whole system worked well, but today when I connect the UE to gNB, the phone can't reach the internet. I have added the NAT rule:

### Enable IPv4/IPv6 Forwarding
$ sudo sysctl -w net.ipv4.ip_forward=1
$ sudo sysctl -w net.ipv6.conf.all.forwarding=1

### Add NAT Rule
$ sudo iptables -t nat -A POSTROUTING -s 10.45.0.0/16 ! -o ogstun -j MASQUERADE
$ sudo ip6tables -t nat -A POSTROUTING -s 2001:db8:cafe::/48 ! -o ogstun -j MASQUERADE

the amf log:

the upf log:

[pgawlowicz]

could you share your configs? could you reduce tx gain a bit?

[chonghua1]

Thanks for the reply! I have solved the problem with disable the firewall :D