lsdigital,
welcome to my ADSL!
My ADSL line was installed yesterday, and although I'm not using the WAG54G, I am using the ADSL2MUE which I believe is very similar.
The DSL light will only flash when the Modem syncs with the exchange, once the sync is completed the light will be stationary lit.
When the technician came to my house yesterday the DSL link light also refused to come on. He had the same situation with his modem and laptop. Did the technician's modem sync with the exchange?
He went back to the exchange to test the port. Telkom support said to him over the phone that the port is fine on their system. After spending some time in the exchange the DSL link light started to flash and went stationary.
He later told me that the port was incorrectly wired even after it was signed off by the guys from Pretoria who apperrently installs the additional DSLAM ports, or something along those lines.
What I'm getting at: If the DSL light does not flash
1) Is the line active, can you make a phone call? The physical copper connection could be down.
2) If you have an instrument attached to the line, make sure it has a POTS filter otherwise the DSL will not work or unplug all phone instruments.
3) The DSLAM port is incorrectly wired or not plugged in, in the exchange
Hope this helps!