Win7 Startup 1st thing in the Morning won't connect to Internet

I have a client who indicated they have one of their 4 office pcs that, when starting up for the 1st time in the morning, will not connect to the internet. They say, they have to restart it again, and then it will connect, and subsequent restarts throughout the day work fine...

I am scheduled to check out this PC next week, so I wanted to see if anyone had any suggestions on what might be causing this, and/or what I should investigate?

This is a general use PC, which is only used a few times during the day (by multiple persons), and typically only for viewing web sites and checking email. With the exception of possibly one employee, users do not know much about PCs and I don't believe anyone has altered the PC settings. Up until about a month ago, this PC had worked flawlessly..

Thanks in advance for any suggestions you might have.

Thanks for the reply.. I will double check, but am pretty sure they do not power off computer systems, as they have systems they must keep running for their technicians who handle customer calls for security systems (this is an alarm system installation company).

For sure.. will check that.

... what is puzzling, is that the other office computers work fine on their 1st startup of the day.

That's a possibility... I will definitely check that out...

You could also try re-booting the modem (and router).

We have tried that.. I sent a note to the office to try the following:

• leave PC on overnight and see what happens
• Confirm none of the internet related systems are shut off (Modem, router, hub) each night
• Turn on another office PC 1st in the morning, see if it connect to internet, and see how the problem PC works when it is turned on

Just trying to eliminate some probables before visiting next week.

I'd look at Event Viewer to see if there are any errors.