Hi,Wish to ask y a Cisco 1721 router can reboot by itself very often in a day? What causes it?? I had 1 ADSL and ISDN modules in the router. Is the IOS got corrupted?? Kindly advise. Thanks....

Hi, Wish to ask y a Cisco 1721 router can reboot by itself very often in a day? What causes it?? I had 1 ADSL and ISDN modules in the router. Is the IOS got corrupted?? Kindly advise. Thanks....

Hi,> I wish to make an enquiry about the Cisco 1720 router. There seem like when> I turn on the router for long period of time, it may lost connection with> the network. Is 1720 router easily get heated up?? Whenever there's a lost> of connection, I...