My Playstation and my cellphone lost connection to the router after the installing Epson L355 multifunctional printer. I can't re-install them. What should I do?
The printer should not interfere with Playstation or your phone, because these are not related in any possible way. Please, restart the router and check your wireless settings. A master reset is recommended: press the reset button for about 30 seconds then release it. Connect to its interface using the CD that is attached to it and perform a reconfigure operation. Then you can use your devices.
I want to thank you, Mr.Pete Clapp, for your helpfull tips.
Sure the problem was on the wireless settins of my router. After following your recommendation, I could, finnally, perform re-installation.