speed crash after ISP update

ISP Modem: CISCO DPQ2160
ISP Speed: 512KB
Haxorware Modem: SB5101E(Version 1.1 Revision 39)
Custom Speed: 20MB

Haxorware Setting:
Disable Firmware Upgrades:
Force Network Access
Tftp Enforce Bypass

Problem
My ISP recently updated its function. From 20MB download and upload rate, speed went down to 512KB and 2.7MB.

Does anyone know what changes my ISP made? How can I set my Haxorware Modem now?

Thanks

Haxorware Status

  Haxorware.jpg (Size: 51.88 KB / Downloads: 5)

Custom CFG file

  CfgFile.png (Size: 13.16 KB / Downloads: 5)

Signal Status

  Signal.jpg (Size: 39.61 KB / Downloads: 5)

Speed Test Result

  Speedtest.png (Size: 358.76 KB / Downloads: 7)