Connection to internet only after restarting

My desktop computer that is hard wired into our wireless modem does not connect until the computer is restarted. The laptop that's connected via a wireless connection works all the time.
I turn the desktop on and it can't find the internet connection so I have to wait for approx. 5 mins and then restart and it always finds the internet connection after restarting. The modem is never turned off, and it is connected by wire to the modem with an Ethernet connection. Any help on this would be appreciated.

Try this,

1. Go to Start>All Programs>Accessories>System Tools>Command Prompt
2. type ipconfig /flushdns
3. Restart your computer, upon restart unplug your ethernet cable.
4. Upon boot plug in ethernet cable.

Hi,

I'm having the same problem, in reverse... my laptop uses a wireless connection, but will not connect to the Internet until I restart. At the first startup, it's as though the computer can't see the connection device. When I slide the manual switch, I get the "No Device" display.

I'd appreciate any help.

Thanks,
Jess

Hi Jess Wunman,

Have you ever tried updating your wireless device drivers? If you did then it can be that your WLAN card is on the verge of failing.

Sorry for my ignorance, but how do I check / perform the update for my wireless device drivers?

Please post your laptop brand and model.

ACER Aspire 5570Z

My apologies for the late reply, here is the link to the driver update. If that does not work, kindly post back here.