Internet Speed test history keeps disappearing

[Invisible Boy]

I have been toying around with my SmartRG DSL modems' settings and switched on SRA and PhyR (they were off by default). Since then, the router's Internet Speed test history keeps disappearing, and tests often doesn't finish and stuck with Ping value empty. I wonder what I am missing. Is it a good idea to even switch these two settings on?

 

[L&LD]

Seems like it's not a good idea to play with settings you're not already familiar with.