Cannot connect to SonicWall with any browser

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1

https://community.spiceworks.com/canonical_answer_pages/75477-cannot-connect-to-sonicwall-with-any-browser

Cannot connect to SonicWall with any browser

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Posted in Networking > SonicWALL

I cannot connect to our SonicWall NSA220-W firewalls with any browser. They all produce errors, as shown below. All the fixes I can find say “try another browser” or get on the SonicWall to change settings, but I am unable to get onto them. I tried the following Firefox changes which did not work: bypassing the “ssl_error_no_cypher_overlap” error in Firefox 34 – Ryan and Debi & Toren. Also tried following and did not work: Unable to log into If.com on-line banking account | Firefox Support Forum | Mozilla Support. Any suggestions about how to fix this?

Chrome:

ERR_SSL_VERSION_OR_CIPHER_MISMATCH

IE
This page can’t be displayed

Turn on TLS 1.0, TLS 1.1, and TLS 1.2 in Advanced settings and try connecting to https://x.x.x.x again. If this error persists, it is possible that this site uses an unsupported protocol or cipher suite such as RC4 (link for the details), which is not considered secure. Please contact your site administrator.

Firefox:
Secure Connection Failed

An error occurred during a connection to x.x.x.x. Cannot communicate securely with peer: no common encryption algorithm(s). Error code: SSL_ERROR_NO_CYPHER_OVERLAP

mlouie-cch

mlouie-cch

• Oct 05, 2016

20

Most helpful replies to this topic

Neally Neally said on Oct 05, 2016

BEST ANSWER 9

Use internet explorer.

You’ll get the error again, go to internet options, advanced tab, scroll down and enable SSL 3.0

800×427 120 KB

Also:

Chrome and Firefox recently stopped supporting RC4 based certificates. Many SW self-signed certs use RC4, thus the error message you are receiving. The two simplest resolutions in this case:

  1. Upgrade SW firmware. For Gen 5 use 5.9.1.x. For Gen 6 use 6.2.4.x or later.

  2. Disable “Enable RC4-Only Cipher Suite Support” in the SW diag page. Be aware that unchecking this box might cause the sonicwall to reboot.

https://community.spiceworks.com/canonical_answer_pages/75477-cannot-connect-to-sonicwall-with-any-browser

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2

The error ERR_SSL_VERSION_OR_CIPHER_MISMATCH appears due to a lack of “common SSL protocol version or cipher suite support” between a web server and a user’s browser. This issue happens during the TLS handshake process. With that, the browser will automatically display this specific error message. There are many reasons for the error to occur, some of them are as follows:-

  1. Outdated browsers or operating systems
  2. Use of old TLS versions, significantly older than TLS 1.2.
  3. Web servers employ the outdated RC4 cipher suite.
  4. Corrupted SSL state within the browser.

There are many ways to fix the error, which can help understand it properly in detail. I found very important guidance at Certera. com

I hope it helps!

1 Like
3

Thanks for the reply, @ellygracia. Great to have you as part of the community. Insightful information on this issue. Take care!

Dave Safley