GL-MT300N-V2 losing Static IP Address

I have configured the Router to give a PC Static IP Address
This works perfectly when the Router and the PC are initially powered on
Router has latest firmware, PC also has latest version of Torguard Client
The problem occurs after I have run the Torguard Client on the PC
This makes the Router change the PC’s IP Address to
I don’t believe I had this problem when I initially set up the system
Is it possible I have accidentally made a setting change to cause this?

Can you stop the Torguard Client and try again?

Thanks for your help, but I nuked the Router with the “Revert Firmware” option and that seems to have fixed it