Looking for a reliable USB to Serial port adapter. We just purchased IBM ThinkPad T42's with no serial ports. I purchased a USB to serial port adapter from Sewell to test. My test results connecting to the following Cisco products... Cisco 3745 Router Cisco 3550 Switch Cisco 4503 Switch
have had limited success. If I connect to one of the above Cisco products then disconnect from the console port I usually have problems connecting to one of the other above Cisco products, sometimes the problem is re-connecting to the same product. Sometimes pulling the USB adapter out of the port fixes it, sometimes it doesn't. Sometimes a reboot or 2 reboots fixes the problem. I downloaded an updated a driver from Sewell and I never was able to connect to the above Cisco products. I removed the new driver and went back to the older driver and at least got back to the intermittent connection problem. I tried a new console cable, same problem. The laptops are running Windows XP Pro with SP2, we use Hyper Terminal to connect. I put a breakout box on the cable and can see DTR and RTS go high when Hyper Terminal is running.
Anyone have experience with USB to Cisco connections?