Putty Serial Connection Black Screen, Mar 4, 2021 · And I tried to revert to factory firmware. I have tried opening Putty and waiting for some time but it only ever shows a black screen with a single green rectangle. Once connected you will see a login prompt. Plugging into port 1 of the switch will give you access to the admin console (thought the web interface). I use this USB adapter that has status indicator lights that helps allot with mysterious serial connection failures. But I am getting blank putty screen. Jun 5, 2017 · The ports can be USB, serial (requires a null modem connection), Or dedicated rj45 console port. This guide walks through the basic setup process, from identifying the serial port to opening the PuTTY session and fixing common problems like a blank screen, garbled text, or connection errors. I get a black screen with an unblinking cursor. Dec 6, 2015 · That cable is connected to a serial-to-usb adapter that I got from Monoprice, and that is plugged into my computer (running Windows 7). Putty won't open a connection from the “Serial” tab in the left column. When you see a blank screen, press the Enter key. g. However, when I click "open" it just opens a black screen in putty. the USB-to-Serial pins are connected via wires versus a header/USB port) check the Tx wire to ensure it's correctly wired. but it failed and my router never turned on and was not detected using the ethernet port. Feb 25, 2025 · Imran, I have set Putty to Serial connection type, 9600 speed, COM3 serial line as instructed. Jun 5, 2017 · Is the serial port in the back a DB9 port or an rj45 port? That is where you need to plug your USB to serial cable into. The USB end is connected to my laptop and the serial female is connected to the console port. Been trying to console into a cisco access point but it has just black screen with green cursor on putty, read few posts saying the cables are the issue , so this is the rj 45 end of a RJ45 to Rs-232 cable ( amazon link) Is the cable the reason here , I am facing this issue, any advice would be very helpful, thankyou May 30, 2016 · Yesterday, I used serial connection in same condition. Access through Ethernet port is normally through telnet or ssh (secured). No message. If I try using the same cables and same settings, when I connect to the third switch I just get a black screen. When I go into the device manager, I see that it uses COM5, so I'm trying to connect to that with putty. There are just connection tutorials and network connection problems. If the cursor stops moving, it jumps back to the top, but I cannot enter any commands. When I launch putty I get … Jul 31, 2017 · I use Putty all the time on Windows 10 with Cisco Devices, however my adapter uses an FTDI chipset. Just black window. It will open a connection in putty (9600, 8bits, 1 stop bit, no parity, no flow control) but will not load the system info. Any other ports on the front of the switch won’t give you a serial connection because they are Ethernet ports. Jan 20, 2024 · If you're using Putty to connect to an Ubuntu VPS and the session opens with a blank screen, this article provides a solution to the issue. In advance system SNMP for access through a central management system. When I hit enter, nothing happens. Jul 17, 2019 · I have (3) new Aruba 2530 switches that I am trying to connect to through the console port so I can set IP addresses and passwords. I have tried typing various things to prompt it to load (enable, FS>enable, admin) but no dice. I use those all of the time. How can I solve this problem? I googled this problem. I have tried on two different PCs and a Mac using Serial. I have seen putty lock up if the serial port misreads the connection, usually closing putty and re-seating the connections works. Jan 19, 2020 · The objective of this document is to show you how to access a switch’s Command Line Interface (CLI) with a Standard 9-pin Serial Cable and a Secure Shell (SSH) client Dec 17, 2019 · Had this problem and found the solution. Choose “Session” instead and select the checkbox for Serial. Type in “ root ” for the username and press Enter. PuTTY's display is just blank. Jun 5, 2017 · You need a serial to serial cable plugged into the adapter on your laptop and the other end in the serial port of the switch. You can use a blue rollover cable from Cisco. after connecting to putty with plugged in Dec 7, 2012 · I am trying to connect to the console with putty, but when I start the device I see my cursor move over the screen, but there is no text displayed. so I purchased USB to TTL CP2102 Connector and tried to connect to the serial port with putty. Feb 1, 2021 · I'm not familiar with accessing a modem via serial, but if it's not a plug-n-play setup (e. . This is how i connected to putty. For Intel® Edison boards running older firmware: You may need to press the Enter key twice. Dec 7, 2012 · I am trying to connect to the console with putty, but when I start the device I see my cursor move over the screen, but there is no text displayed. I’ve tried changing some Jan 22, 2020 · Hello there, I am trying to connect to a Cisco switch SF500 using a Rs232 serial interface to USB. However, today, I can not use it. Using a USB to Console port cable I can connect to 2 of them and access the setup portion of the switch without any problems. No serial connection problems.
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