Hiya
can you connect to the modem diagnostics at all ?
http://192.168.100.1/
user name/password are admin/admin or root/root
what does it say for the first two numbers in the IP adress e.g. 10.189.xx.xx?
and the up/down power levels & signal to noise ratio?
- but jimbo is prolly right, flashing rdy light usually needs an engineer