Ih2006-kvm-extender

Hello

i have a IH2006-KVM-EXTENDER on the network .

it works but the screen is sometimes hanging and disrupted image. it passes through some cisco switches CS1300 and CBS series. how can i getthis solved so the customer can use it for playing video and using it as a normal pc for looking up google maps mostly

anyone got this problem?

thank you

VDS