negative, although i've read and experienced myself longer wait times. When things are setup correctly, your wait times should be minimal. the status on your tablet should almost immediately show either request received or request acknowledged...i dont remember. If you see that, you know things are working correctly. If you just see "request sent" with nothing following for a long period of time, i would be something is broken...
Now after 10 to 20 minutes...do you get the supplies you requested? If so, its working. You may just have issues with your insertion points.
Note that if you put down a logistics module that is set to "Static", the insertion point for your resupply will be based on the actual location of your logistics module. If the objective near your logistics module is not under your control, OPCOM won't be able to resupply you. If you have it set to "Dynamic", the location of the module isn't supposed to matter. Your insertion points will be based on the highest priority objectives that you are controlling.