Have you doubled checked the 127 line in tclient isnt using emuProxy ... ie there isn't a 2nd one higher up. There is a new proxy mechanism for nice firewall support in the latest image.

... then have you tried one of the dev emulators, if you are settng up from scratch try the port 8000 emulator to get the logo slice ... (its unlikely, but there could be something up with the main emulator)

[Let me know once you've tried and I'll take a look to see if the dev emulator got your connection]