CASTEP Licensing through SSH Tunnelling

At my university, the high-performance cluster network is not directly accessible from my Windows machine and requires SSH tunnelling to call licenses. To do this, I use PuTTY and open ports 1715 and 1720, It was working fine last week, but this week after my ITs updated the license file, it resulted in the following error:

Error: #-97  (LP 7.6.5)

The desired vendor daemon is down.

  Check the lmgrd log file, or try lmreread.

Feature:       License_Holder

Vendor:Host:   localhost

License path:  C:\Program Files\Accelrys\LicensePack\

Licenses\msi.lic;
   C:\Program Files\Accelrys\LicensePack\Licenses\remote_msi.lic;C:\Program -
    Files\Accelrys\LicensePack\share\data\*.lic;1715@localhost
FLEXnet Licensing error:-97,121
For further information, refer to the FLEXnet Licensing End User Guide,
available at "www.macrovision.com".

I already tried restarting the license manager. Same error. Any thoughts?