Smart Broadband Connection Unable to connect

Smart Broadband Connection Unable to connect.
I have a subscription from Smart Broadband, which uses a Radio Antenna (Canopy) to connect on their transmitter. My connection lost maybe due to typhoon. So I called the Smart Broadband hotline, to ask for assistance. The technical support claims that my antenna is acquiring good signals and there is no problem detected on it. She claims that the problem comes in my computer or the operating system.
I also have a Globe broadband connection, so I tried to connect my Globe to the LAN which Smart claims to have the problem, but it works fine. I explained this process that I’ve done, to Smart but they stick to their claim, which is according to her, they are different from Globe because Globe uses router.
I don’t want a long conversation with those people, so I just disconnected the call and tried to solve the problem, myself. Still, no luck!
Maybe you experts could help me for this.
