Traffic Packets getting delayed between switch and FWSM

[slicerpro]

When I do a wireshark capture on a switchport, I see my client's SYN go out and the SYN ACK come back within the same second. However, on the FWSM module sitting on the same switch, the SYN ACK doesn't arrive until after 30 sec and so it gets dropped having already exceeded the tcp timeout. 

Where can I look to find the point of delay?

[slicerpro]

Need to add that switch is running 12.2(50r)SYS3 and FWSM is running 9.2(4)5

[slicerpro · Accepted solution]

One of my contexts had routing for original source where it should have had a route for the natted IP