PC not have access to lan behind S2S router

Hi, I have config 3 router in goodcloud S2S for remote access to machine.

S2S network is look ok:

And I set access to Remote Router LAN:

On travel router (E750) diagnostic ping is working:

But when I try ping from PC is not working:
obraz

I have no idea why. Can You help me?

On the past when I use usb150 insert of E750 it was working prefect. Now I have E750V2 and no any idea why it can working. There is some firewall problem? Why the E750 router can pings MT300N-V2 LAN IP buy PC connected to E750 cannot?

I add old USB150 router and check again.

And at PC connected to USB150 router is working.
obraz

But at PC connected to E750 not.