no acces ugs20

baudetd

Hello


I have 2 UGS20 routers.


since there is a certificate problem, I go through the internet explorer browser

but I can't access one of them even with internet explorer

message INET_E_DOWNLOAD_FAILURE


I can't log in using SSH either.


I think that the 2 boxes do not have the same firmware


do you have another tool to do this?

Zyxel_Jeff

Hi @baudetd

It seems you enable the feature on the path Configuration > System > WWW > Service Control > Authenticate Client Certificates and your PC has not imported a trusted certificate yet, so you cannot login the device.


Please connect your PC(with Tera Term or PuTTY, the baud rate is 115200) and device with the console serial cable. Then login to the device and enter the below CLIs to disable this feature.
Router > configure terminal
Router(config)# no ip http secure-server auth-client

Here are some users who encountered the same problem(link1, link2). 

Zyxel_Jeff

Hi @baudetd

Is it possible to check with the serial console if authentication is enabled?

Yes.

 Is it possible to do this over ssh?

 Yes.

Zyxel_Jeff

Hi @baudetd

It seems you enable the feature on the path Configuration > System > WWW > Service Control > Authenticate Client Certificates and your PC has not imported a trusted certificate yet, so you cannot login the device.


Please connect your PC(with Tera Term or PuTTY, the baud rate is 115200) and device with the console serial cable. Then login to the device and enter the below CLIs to disable this feature.
Router > configure terminal
Router(config)# no ip http secure-server auth-client

Here are some users who encountered the same problem(link1, link2). 

baudetd

hello


thanks for the reponse 


it's surprising that it's activated because I'm the only one to connect to it and I was still accessing the interface a few weeks ago


Is it possible to check with the serial console if authentication is enabled?



 Is it possible to do this over ssh?

Zyxel_Jeff

Hi @baudetd

Is it possible to check with the serial console if authentication is enabled?

Yes.

 Is it possible to do this over ssh?

 Yes.

baudetd

I connected in serial but I can't log it because it asks me for a user name and password,
my credentials are not working


same in ssh


However, here is the message I get when I log in





ALERT!!image filesystem usage: 99%12K    
/rw/lost+found1.0K   
/rw/etc_writable/budget100K   
/rw/etc_writable/zyxel/conf101K   
/rw/etc_writable/zyxel4.0K   
/rw/etc_writable/hwclock_log833K   
/rw/etc_writable55M     /rw55M     /rw

Zyxel_Jeff

Hi @baudetd

You could refer to this link to see how to restore your previous configuration if you forget the login password. Thanks.

baudetd

Hello

I was finally able to access the interface of the USG 20 router

I was able to update the firmware

firmware download from website (released date: 2016-11-22)

however, I did not find the latest firmware
because I have another router that already has the latest version
(released date: 2016-11-30)

I found this link which allows to download the *.bin file

but it doesn't work

thanks

Zyxel_Jeff

Hi @baudetd

Please refer to this download link then unzip the .zip file to the .bin file and upload the .bin file to your ZyWall USG20 it should be OK, thanks.