This post applies to the Panasonic HS1000/2000/3000, but may apply to other machines that perform dialup.
Several of the Replay TV numbers that have been said to work (including mine) appear on this list:http://www.southcentralpower.com/bro...ss_numbers.pdf
I suspect that any of these numbers, since they are all hosted by AT&T, will connect you to the ReplayTV servers. If you are having trouble finding a local number, check this list. If you can't find the number in your list of ReplayTV numbers, you can program the number as a dialing prefix (inserted after your existing dialing prefix, if you have one.) The earlier machines may allow enough digits to support 1 plus area code in front of the number, as required in some areas (e. g. areas with "overlay" area codes.)
Now, to change topic, following is a variation on seti1's post #50 in this thread. Follow the instructions given but select Cable for ANT/CATV and continue up to but not including "Keep all settings." Now, go to Change Telephone. Keep your phone number but change the ZIP code. I used 12309. If you succeed without a network connect error, continue with downloading the program guide in the next step. If you chose 12309, select the first choice, Niskayuna Times Warner (not the digital). If all goes well and you get a program guide, go back through the steps with your original setup and ZIP code.
I got two machines to work this way. The third machine did not succeed so far.
I suspect that the ReplayTV servers are overloaded with traffic because the steps Setting clock, Setting timezone, etc. went quickly when things worked. When someone succeeds, it may be because they were lucky enough to connect when the server traffic happened to be light.
Bear in mind that the machines that fail to download a guide at night try again, maybe more than once, resulting in even more traffic to the servers, aggravating the problem if, indeed, it is a server traffic problem.