Connection keyboard and mouse USB Wired stall

Hello

My computer repeatedly interrupts the connection to my Wired USB mouse and keyboard.  Usually around one every 30 seconds, the connection falls for 1 to 1.5 seconds, then comes back.  Meanwhile, the cursor hangs - I can't click anything, and I can't press any keys on the keyboard.  For example - when I type, I have my keyboard will stop working for a while, and no text will appear.  This is particularly problematic when I play games.

I tried to reboot the computer, reset the SMC and the mouse and keyboard.  I also tried all USB entries on my mac (4 in total), and the problem persisted with each of them.  This leads me to believe that it is either a problem with all the USB inputs, or a software problem.

I have an iMac 27 inches, mid-2011 with OS X El Capitan 10.11.6 (specifications: 3.4 GHz Intel Core i7 processor, 16 GB with 1333 MHz DDR3 memory and storage capacity of 2 TB).

I use a wired USB (Logitech G402) mouse and keyboard USB Wired (Razer BlackWidow Stealth).  I have the latest version of Logitech Gaming Software and Razer Synapse installed for support.

I would appreciate help.

Check if there are updates available driver.

To check if the problem is with the USB to your Mac controller, test with a different keyboard or mouse.

To check the extensions conflicts, etc., try the startup mode.

-----

Restart in Safe Boot mode by holding down the SHIFT key at startup. Secure boot is quite slow because the operating system performs some cleanup and verification tasks, so give it time. Once you're completely connected, restart normally.

Tags: Mac

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