877 default route using track command

Trouble with P to P fiber utilizing 2901 WS-C3750X-24P-S ISR and 2924XL switch

Hello experts,

I am having a bit of trouble with the following scenario; I have two 2901 ISRs from 3Anetwork.com and a 2924XL setup in the following fashion.
2924XL--->P2P-Fiber--->2901ISR--->P2P-Fiber--->2901ISR
I  need to be able to reach the LAN 192.168.1.0 from 192.168.3.0 for TS  but cannot get this to work.  I can ping from within the switch all  around and i can ping from within the woodlawn router all around but  cannot ping host to host.   Any help would be much appreciated as i am  sure i have missed something obvious.

The supplier 3Anetwork.com can help but their technical support charge is a bit high, so I would prefer to WS-C3750X-24P-L do by myself.

Thanks for your help.