Motorola MG8702 User Manual page 42

4 Click the Save button.
Network Name can be from 6 - 32 characters long. You can use the
upper and lower case letters (a – z and A – Z), numbers (0 - 9) and
special characters (e.g. $_/& etc.) except the single quote ' .
Password can be from 8 - 63 characters long. You can use upper and
lower case letters (a – z and A – Z), numbers (0 - 9) and special
characters (e.g. $_/& etc.) except the single quote ' .
Be sure to write down and save the new wireless network names and
passwords in a place where you can easily find it. One approach is to
write them on a small piece of paper and tape it on the bottom of your
cable modem. Some people like to take a picture of the settings with
their phone.