Company main road by a gateway is 10.8.0.1, main by LAN address 192.168.1.1, by open DHCP services segment of the main road is a 10.8.0. X,

Above for the current situation,

Here are the problems:
New office to add a pair of routers, LAN address for 10.8.0.55, shut down the DHCP service, problems come, mobile access IP segment is 192.168.1 X, lead to can't get to the Internet,

I think may be caused by LAN address of the main road, but is the main by the DHCP service is only for 10.8.0. X network segment,
If I will be by LAN address instead of the main gateway or what are the consequences of 10.8.0.1, company production line with MES system running 24 hours a day, I worry about a problem to make,

Meow microphones, know why, some company took 360 portable WIFI