Forum Discussion

Aspirant

Mar 04, 2017

FVS336Gv2 Secure Connection Failed

System Name: FVS336Gv2 Firmware Version: 4.3.3-6 After upgrading firmwear to4.3.3-6 when I try to access admin interface I get an error in all browsers I have tried "An erro...

fvs336g

Security

DaneA

NETGEAR Employee Retired

Mar 05, 2017

Hi webspider,

Kindly answer the questions below:

a. Have you tried to clear the cache on the browsers you're using then try to access again the web-GUI of the FVS336Gv2?

b. Have you tried using another PC/laptop to isolate the problem?

If ever you are using Firefox, try this: go to Preferences > Advanced > Encryption > View Certificates > Servers > Add Exception. Then enter the IP address of your router, (for example: HTTPS://192.168.1.1), then click Get Certificate > Confirm Security Exception. Let us know if this helps.

Regards,

DaneA

NETGEAR Community Team

webspider

Aspirant

Mar 05, 2017

Hi DaneA

Yes the first thing I did was clear cache and history I also deleted the certificate for https://192.168.1.1 and tried to add an exception. Firefox 51.0.1 simply refuses to add the certificate.I'm using ubuntu at my work where this FW was in use. I decided to bring the FW home for more tests and my laptop has the same problem.

I can access the FW admin with Chrome but it reverts to a non secure mode. I have tested it now with an Widows XP machine and Firefox complains the certificate is not valid but it will allow me to add an exception.

That does not solve the problem though. The issue is the certificate and serial number don't match. "Please get a new certificate containing a unique serial number. Error code: SEC_ERROR_REUSED_ISSUER_AND_SERIAL"

This happened after I updated the firmware, is it possible the wew firmware has a bug that effects the certificate?

DaneA
NETGEAR Employee Retired
Mar 05, 2017
webspider,

Kindly try to downgrade the firmware to v4.3.3-5 to isolate the problem. Be sure to perform a factory reset after downgrading the firmware then reconfigure it from scratch. Check if same problem will occur.

You can download firmware v4.3.3-5 here.

Regards,

DaneA

NETGEAR Community Team
- Dan_Z
  NETGEAR Expert
  Mar 06, 2017
  Hi webspider，
  I just tried below steps,it can work. You can try it.
  1. On Firefox,go to Preferences > Advanced > Encryption > View Certificates > Servers,delete all certification of Netgear
  2. Restart firefox,then can access fvs336gv2.
  
  Thanks,
  
  Dan
- DaneA
  NETGEAR Employee Retired
  Mar 12, 2017
  webspider,
  
  I just want to follow-up on this. Were you able to try the steps suggested by Dan_Z? We’d greatly appreciate your feedback.
  
  Regards,
  
  DaneA
  
  NETGEAR Community Team