/SLASHPLAY
How to raise the max file size in GMod
Type net_maxfilesize 64 in the server console to allow files up to 64 MB to transfer to or from the server. The default is 16.
net_maxfilesize
Sets the largest file, in megabytes, that can be transferred to or from the server.
net_maxfilesize <MB> Examples
net_maxfilesize 64 Allow larger files.
Arguments
MBRequired- Maximum file size in megabytes.
What it does
Limits the size of files sent through the game connection, such as uploads and direct downloads.
The game's own description: Maximum allowed file size for uploading in MB
Run it on your server
On a SLASHPLAY server, type it in the Console tab of the server page; the reply shows right under it. A value set there lasts until the server restarts. To keep it, add the line to garrysmod/cfg/server.cfg. New to this? Start a GMod server first.
Your own
GMod server.
From $0.03 an hour, only while it runs. New accounts get 6 free tokens.