Hi,\n\nLast Wednesday my cable modem suddenly lost Internet connectivity for most\nof the day. It came back on Thursday but was gone again for all of Friday.\n\nOn Saturday morning an Engineer came round, the cable modem was connected\nagain, and it rapidly became clear that he knew very little about the\nInternet, Networks and Broadband. However, he did a signal test on the CM\nsignal and it was within tolerance. Shortly after he left the cable modem\nlost connectivity again and has been off all of Saturday and all of Sunday.\n\nI have virus checked my PC, I have looked for spyware and, in frustration, I\neven rolled back the 3COM Gigabit NIC driver tonight - nothing.\n\nI then disabled the 3COM NIC in Control Panel and, within a minute or so, my\nconnectivity was back. I re-enabled the NIC and it went again. I then\ndisabled the NIC, waited for my cable modem to regain Internet connectivity\nand watched whilst that connectivity lasted 5 minutes until, sadly, I\nenabled the NIC again.\n\nSo, the NIC appears to be the problem? Is it sending out erroneous packets?\nAnyone have any idea or experienced anything similar at all?\n\nI hope to be able to post this in one of my brief moments of connectivity.\n\n\nJ.