After rebooting Windows, still showed the error 429. The drop downlist for the router worked. Then I clicked update, waiting till no more windows popped up, clicked okay. Drop down, no routers listed. Restart the program, drop-down showed the list of routers again. Only thing missing is the v2 at the end of the WNR3500L, but I assume it's the same procedure. Anyway, thanks. Nice to have this handy.