Very simple code in ASP, works for other devices (Some motorola).
Nokia accepts the cookie, but if the device not used for ~3 days (powered off) the cookie disappears.
No, I didn't press clear all cookies option.
The time on the server is OK.
The cookie survives power cycle, so maybe it's just 3 days.
Not sure, but I don't have an acess to any other firmware, as local operator does not have any firmware updates for this model, and I can't upload one from the internet, it will put ~100 devices out of warranty.
Actually i'm already not so curious about the issue, we mad a very bad workaround by saving user credetials in bookmark's querystring instead of cookie. Both solutions are insecure, but the second one is too obvious. All WAP devices I've seen had embarrasing usability/functionality problems. I hope they finally die, so I won't have to explain to clients why it's a bad idea to use WAP for anything, and then implement some stupid workarounds.