gistek

The hearty wipe may have pushed some dust between the keys and the contacts. You can try canned air to blow it out.

If it's a standard style keyboard, the keys themselves can be carefully pried off and you can use a vacuum to clean the wells. Be careful not to damage the membrane.

If you mix up which key goes where in replacing them, you can use a pencil eraser (clean) to push the disk and see what key you need. If your keyboard has springs in the keys, be sure they are seated correctly when you replace them.

ALSO Don't attempt this in the presence of cats, puppies, or small children.