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Forum Discussion
Karlossimo
May 07, 2020Guide
Lost access to Managed Switch via browser, prosafe utility & serial console port
I bought a used Managed Netgear switch Sept 2019 and have been using it with no issues. Recently I tried to login as I want to look at creating some VLAN's but noticed that there was no url to manage...
- May 12, 2020
I reviewed again our conversation.
I have tried connectiong through the serial port again. The switch is set to DB9 I have the serial cable plugged into the rear of the device. I have checked in the device manager and can see the USB-SERIAL CH340 (COM5) device is working with no errors.
Since you tried using a DB9 console cable, this time, let's use the USB console cable that came with your M4100 switch package. Be sure that the switch at the rear part of the M4100 switch is set to USB console. For you to be able to use the mini USB port, you must install the USB driver on the computer. To download the Windows USB driver, click here. As reference, kindly read pages 22-23 of the M4100 Hardware Installation Guide here.
Also, try using another PC/laptop to further isolate the problem.
Regards,
DaneA
NETGEAR Community Team
DaneA
May 07, 2020NETGEAR Employee Retired
Welcome to the community! :)
I have also used the Netgear software - Smart Control Center & Prosafe Plus Utility which was unable to find the device even thuough I am using an IP of 192.168.0.210 as recommended.
The ProSAFE Plus Utility is for the Smart Managed Plus Switch Models while the Smart Control Center Utility is for the Smart Managed Pro Switch Models.
I have also tried to connect via Putty and ssh into the device on the serial port. That is not working either.
Just to verify. Since you tried to access the switch using the serial port, did you select the correct console port through the console slide switch on the rear panel as well as set the correct settings such Baud rate, Data bits, etc.? As reference, kindly read pages 22-23 of the M4100 Hardware Installation Guide here.
Regards,
DaneA
NETGEAR Community Team
Karlossimo
May 08, 2020Guide
Hi DaneA,
Thankyou for your reply.
I have tried connectiong through the serial port again. The switch is set to DB9 I have the serial cable plugged into the rear of the device. I have checked in the device manager and can see the USB-SERIAL CH340 (COM5) device is working with no errors. I have reviewed the hardware installation guide. Baud rate - 115200, Databits - 8, Parity - None, Stop Bits - 1, Flow Control - None. I have applied these settings into Putty and I get nothing. If i choose the wrong COM port I get an error "Unable to open connection to COM1, Unable to open serial port", but on COM5 it connects but shows nothing.
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