set option format 4

I like to send text and a mac-address to my server and setup my WiFly with the following commands:

Set ip remote 80

Set ip proto 18

Set option format 4

Set com remote GET$/UCDK/index.php?id=UCDK&txt=,&mac

Set uart mode 2

Save

Reboot

The only character my server gets is a , (comma) from my command and not the mac-address.

How can I also get the mac-address??

try the command

set opt format 0xff

I had the same problem,instead of sending some values, this should send everything(time,BSSID,macid,deviceid etc)

Read pg18 of the RN wifly series user manual.

Hope this helps.