I'm having the same issue, every time I want to log in the the router I have to reset to the factory defaults using the reset button and then I can get in without a password.
I use the Gran Paradiso browser (Firefox 3.04pre), it would be really nice if this could be fixed or if I could use a useragent setting to get it to function ok.
I'm not sure at what point I began having this issue, it seems that I had it with the 1.20b5 and also now the 1.21 without securespot.
Chuck H.
edit: ==> just tried to log in using internet explorer 7 and i could not get in. however it may be an issue of when saving the password initially. I'm not sure. It is frustrating though...
could this be an issue related to restoring a configuration from the version 11 msbetab39 version which is what i did when i upgraded to the 1.20b5 version and then again to the 1.21 version.
do I need to go back to version 1.11 msbetab39 version, do screen prints of all the settings and then upgrade and manually set all of the options... I hope not as this is pretty time consuming, but if necessary I suppose I'll have to do it eventually or just stay with the version 1.11 msbetab39 firmware...
it's also painful in that to log in i have to reboot the router causing all connected devices to drop their connection.
I do have the IETAB addon installed as well for active-x.