Can't ping my p2pool server

[bjalbert]

This is driving me nuts. It works fine but won't return a ping:
doge.is-by.us:22550/static

Ubuntu 12.04 Doge p2pool following these instructions:
http://doges.org/index.php?topic=5586.0

- ran sudo ufw allow xxxx knowing it had nothing to do with it.

Network:
- It is a dedicated server behind a home router. Was also behind unmanaged switch but moved it to the router.
- Computer on same network can ping it.
- Enabled Responding to a Ping on an Internet Port (what is internet port 80 8080??) ping doesn't contain port.
- Put server in DMZ and still same result
- Used port forwarding for 22550 and added others for testing like 23, 80, 8080 with no success.
- Disabled Upnp
- Disable Port Scan and DoS Protection
- Changed NAT filtering to open

At a loss of what else to try. I guess I can connect directly to the cable modem and see what happens. My guess is my ISP is blocking ICMP.

Thanks

[Angela8488]

I think your guess is right, haha
user@host:~# ping doge.is-by.us
PING doge.is-by.us (216.195.11.244) 56(84) bytes of data.
From 216.55.4.190 icmp_seq=1 Packet filtered
From 216.55.4.190 icmp_seq=6 Packet filtered
From 216.55.4.190 icmp_seq=8 Packet filtered
From 216.55.4.190 icmp_seq=10 Packet filtered