Heya,
I love troubleshooting. It's the thing that gets me fired up, and is much more exciting than just setting something up. It's a challenge, and I'll never shy away from a challenge. That, and my experience with cisco, are what make me perfect for this job. Look forward to hearing from you.
It's worth noting I'm not really sure how that hours per week works, I can make myself available to you for as long as you need, but suspect this particular job should only take 2 hours.