Are you using any IP's that fall in the 22.214.171.124/29 range on any other interface on the box . 126.96.36.199 is a network address the box may not like this address if you are using any other address in the 188.8.131.52/29 range .
to use your default gateway you can use the 'ip default gateway x.x.x.x' command or a default router 'ip route 0.0.0.0 0.0.0.0 172.16.138.17, If s0 connects to your ISP I think you are going to have to assign the ip address 172.16.138.18/30 , this is the ip address your ISP should have given you , If you configure 184.108.40.206, you will have a pipe that have ip addresses that are not on the same subnet , this will not work.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...