TZ 300 ERR_CONNECTION_RESET

Gonçalo · August 2021

Hello, my name is Gonçalo and this is my first post here in the forum. I have the TZ 300 firewall with de version SonicOS Enhanced 6.2.9.0-21n, in the past month every time i try to acess a page with log in i get the following error:

Check connection

Check proxy and firewall

Run Windows Network Diagnostics

ERR_CONNECTION_RESET

this only happens in chrome and edge. In firefox works fine.

Can someone help me please?

Thanks

Saravanan · August 2021

Hi @GONÇALO,

Thank you for visiting SonicWall Community.

Please check for any proxy usage on the browsers. I recommend you to upgrade the firmware on the SonicWall to the latest version. In case if the issue persists, please try to see if your scenario matches with the below KB article.

https://www.sonicwall.com/support/knowledge-base/sonicwall-gui-is-not-reachable-using-chrome/170504248103895/

Hope this helps.

Join the Conversation

TZ 300 ERR_CONNECTION_RESET

Answers