Troubleshooting...

Before troubleshooting the issue seek the customer's approval for the same. Do not start the steps without informing the customer. There is a high possibility that the customer is not in front of the computer, He could have a hearing impairment.

• "Mr.customer we shall carry out some basic troubleshooting steps in order to resolve you issue at the earliest." Is that ok with you? 
• Mr.customer in order to resolve the issue we will have to follow some basic troubleshooting steps. Is that alright with you?
• "Mr.customer We would start with some basic troubleshooting steps in order to resolve the issue." Is that alright with you ?