In the new BTU huawei hg8240h I found there is actually a WebUI for u to play around with. Unlike its predecessor hg8240w, u have to input the parameters the old school "cmd" and "telnet" way in order to perform congifiguration.

Dhcp configuration as follows:
Ip address                  : 192.168.1.[2<=x<=254, u decide]
Subnet mask              : 255.255.255.0
Default Gateway.      : 192.168.1.1

Navigate to 192.168.1.1 via any preferred browser.
Username: Tmadmin
Password: Adm@xxxx [xxxx are last 4 digits of your MAC address found at bottom sticker]
*credentials are case sensitive

#half-a55ed thread, lOl...

By the way,  as far as im concerned, Time fiber is also issuing Huawei hg8240h with stock firnware. Any1 cares to unveil how's the time version of BTU?