Primary issue is I can not get remote access to work with my slingbox - no error messages - it will just not connect/set up.

Relevant equipment -

Tried two XP computers - one Dell and 1 HP

Internet is ATT DSL with a Siemens speed stream 4100 modem

I can access the admin functions of the modem, but there are no places to make adjustments and I have been told there is nothing to adjust as the modem does not contain a firewall

The modem is directly connected to a Netgear WGM 124 pre-N router and access point. I have the sling hooked to one of the router ports and a router port from the netgear goes to a Dlink router to distribute wired service to the house.

The netgear router has TCP/UDP service set up on Port 5001 for the slingbox and port forwarding set up for this service to 192.168.1.237. There are no blocked services.

I am using a wi-fi connection to set this up so we are contained in the Netgear router.

The slingbox set up perfectly on my home LAN and works like a charm. Issue is with setting up remote access. There is not any error messages - just that it was unable to make the appropriate connections to set up remote access.

I have tried resetting the sling box, changing the port to 443, 80, and 21 and still can not get it set up.

When I go to canyouseeme - it shows all of the ports as being blocked for my home ip address - not sure if this is really an issue because I think the port should be blocked unless the software is active - totally outside my realm of understanding.

Sling believes that my ISP is blocking the ports and have given up. I spent 4 hrs with ATT and got to a level II tech who got to a support person to query the router serving my house and claims that the port is open. The only port they are blocking is 25.

Please help...