Gl-SFT1200/Opal too slow

I just purchased this model on Amazon and I am only getting 10% of my usual speeds.

Usual Speeds: 97 download/ 10 upload

Opal Speeds: 8 download/ 8 upload

2.4g configuration:

  • Visibility is shown
    -password is unchanged
  • bandwidth is at 40 mhz
  • Channel 11

5.0g configuration:

  • bandwidth 80 mhz
  • Channel 36

TX power is high on both.

I will be returning this modem if I cannot fin a solution by Sunday as I need it for work. I really hope I can keep it! The speeds are just unacceptable.

Please help!