I have the t3200m modem
I was able to consistently load 192.168.1.254 to get to the admin page, log in, make changes. No problem. But after making about 5 changes to the schedule section, the admin page will no longer load. I get a blank page.
Although it is a ridiculous fix, I have tried emptying the cache, loading on different modems, even on different computers. No change - the page comes up blank.
If I pull the plug on the modem the admin page will "sometimes" come back only to be non-responsive again after 2-3 loads.
Note the modem functions properly the whole time - wired and wifi are working.
More...