Problem with Filemaker pro 5.5 web companion

[suriana]

i installed filemaker pro 5.5 in server using operating system nt 4.

i do share file filemaker to user. users use filemaker pro 5.0 and

they open through application. sometimes it's happening when i try

to open through web browser..it's not working...

when it didn't work, i tried to change port number 13920 but error message said that the file can't share through web companion because of network error.

and then i close all file and aplication in server and open it again

it's working......and tomorrow that problem's happening again.

anybody know..how to solve it ?

thanks very much