We have multiple customers using Draytek Vigor 2830.
Until approx 2 weeks again we were able to access the remote management for the routers via the address HTTPS://*WANIP*:443 or HTTPS://*WANIP:*CUSTOMPORT*.

However we are now unable to access any of these routers from Google Chrome or Firefox browsers. We are presented with the following error:

Code:

This webpage is not available A secure connection cannot be established because this site uses an unsupported protocol. Error code: ERR_SSL_VERSION_OR_CIPHER_MISMATCH

The remote management DOES work in Internet Explorer v11.

Does anyone know of a recent change to SSL in Chrome/Firefox that may break this SSL connection or certificate?

It doesn't matter which port you customise the Remtoe Mananagement HTTPS port too, it fails on all of them.

Thanks.

I have found the same - Have loads of these out in the field, so am having to get used to IE again

This is because google has killed SSLv3 within Chrome I'm yet to figure out a fix.

Found the fix http://www.draytek.co.uk/download/support/readme_v2830sb.txt

SSL3 now disabled in favour of TLS by default for SSL tunnels and web management.

Thanks
Wayne
http://www.ramblinggeek.co.uk

Google, Mozilla & Microsoft all stated they're dropping support for SSL 3.0 due to vulnerabilities, back in October last year.

I'm glad they've fixed the 2830 for you RGUK, now hopefully they can fix the 2850 and other affected models.

It's bad enough that management over HTTPS is affected, but we use user-based web-authentication for one of our SSIDs; and I'm not happy that I have to switch to HTTP to allow users to login!