Webgui upload filesize

[setchi]

Hi,

I'm running 1.2.2 full installed on harddisk
I have installed several Packages: Avahi, Squid, Freeswitch, freeradius, and TFTP.

My question is:

Where are the limitating settings for webgui upload filesize?
I tried to upload a 90MB-file to TFTP but the webConfigurator seems to be "dead"/not responding until restarted via console.
Same behaviour when I uplod via diagnostics–>command-->file upload
There are lots of smaller lighttpd-upload-.... files created in /root (maybe the upload-temp) but they are never merged.

According to another hint I tried to raise the PHP upload_max_filesize and post_max_size but this didn't help

(of course I restarted the webConf after the changes…)

Please, help me (I really need this...)

best regards
setchi

p.s.: sorry for double posting but another moderator has moved my question to tftp package forum, but I think it's a general setting, not a specific TFTP-issue...