Mac OS X Network Connection Error message

It seems that fix for the Huawei USB SingTel Mobile modem I painstakingly detailed last week has stopped… fixing. Stopped working. Like a Monty Python parrot, it has ceased to exist. What's worse is the error message is informing me I have to contact myself. Don't they know talking to yourself is the first sign of madness? I mean, I talk to myself enough as it is.