The switch might be bad. Before you get Dish out to fix it, do a hard reset by holding the power button in until the rcvr cycles. Then do your check switch.
After that make sure 110 is in the first port on the left of your DP34, 119 in the second, and 105 on the third. The ports on the right of the switch are output to another switch.
If you have more than one rcvr, swap ports, and see if the problem moves to another rcvr. If so, than you have a problem with that port.