DIA Problem.

[a7medOzO]

Alsalam Alikom ,
i have a problem with my DIA line,we request DIA line from service provider and ISP provide us with it but the IP and gateway with subnetmask /31 (255.255.255.254)i configure the router with all cradential i received from ISP and the internet working well in routerbut the problem is there is no internet in LAN , i checked access list , NAT and static route and all is OKi tried more than another routers and small modems and the same problem occured that the router have internet but the LAN doesn`t have.if any one have a solution for this problem please contact me.Thank you,

[asilverhawk]

How did you confirm that the router has internet access?
Check DHCP and DNS or use static ip configuration
Double check the NAT configuration on the router, most likely it's NAT issue