Cap, I have no personal experience with this, but here's one of the support pagesI found.
This page does offer at least two firmware updates, and perhaps other users here might offer non-ActionTec firmware update pages, if there are any.
On the above page, the Firmware 1.08 claims to "restore your device to factory defaults, erasing all user names, passwords, wireless settings and advanced custom configurations..."
That's good, in one way - if you do explore other Firmware Updates, you may need to 'go back' to some standard and this 1.08 seems to offer that 'easy out' for you.
Googling on this device produced a number of links. AWESOME TOAST has an interesting diatribe against a few carriers.
I mention all of this because there doesn't seem to be an indication of "what's too much lighted activity or not", but perhaps some of these entries will be meaningful to you.
My first option might be to go back to my carrier and see if they have any suggestions - carriers will have experience on far more boxes than THEY care to have, and hopefully will share that wisdom with you. But often, I find it's up to the individual technician who gets my phone-call.