Hello I have had a Similar Problem With My Printer Today & Here is How I fixed it With -
* Firstly You need to Identify the Problem Because in Case of frequent Connection it is seen that Most of the time its the WIFI Router Which is Causing the Problem. WIFI Router Firmware Needs to be updated & Working-
* Now Go to Your Router Login & Find the security Authentication type. If Your Using WEP Security type then I recommend Using WPA2-PSK Security.
* Check Your Printer Driver & Update it to the latest Version of Available Printer Driver.
* Uncheck '''Printer Offline Mode''' in Printer Settings.
To Find the Complete Fix Go to [http://bit.ly/2whI2TC|Printer Offline & Frequent Connection Fix] Lets see if the Helps you Fix the Problem. Do Comment & Let me Know How it went.