Hello,

Currently connecting my Nintendo Switch to my inhouse wifi. My ClearOS firewall is sitting in Gateway mode between my modem and my Cisco 24 port business switch. I've not had any issues until recently. (When recently? I'm not sure. I don't use the Nintendo Switch all that much). The issue i'm having is that the ClearOS server is now causing problems actually serving internet access to the Switch. It seems the think that there's an 'authentication page' that needs to be accessed in order to connect. I get an IP address from my router but there's no Internet access due to this phantom authentication page. I use the Transparent web proxy with user authentication disabled so there's no page to speak of. I have other devices that connect just fine. In order to resolve this, I've had to disable the Web Proxy completely. Does anyone else have this problem? I'd be willing to troubleshoot with a little direction.

Edit: I think it's an antivirus issue like i've had in the past. I'm not sure why this keeps happening. I believe it just outright stops any internet connection if it cannot perform the virusscan.

x.x.x.x - - [15/Jun/2019:11:33:19 -0500] "GET /approot/content_filter/htdocs/warning.php?DENIEDURL=http%3a%2f%2fctest%2ecdn%2enintendo%2enet&IP=x.x.x.x&USER=-&CATEGORIES=Content%20scanning&REASON=WARNING%3a%20Could%20not%20perform%20virus%20scan%21 HTTP/1.1" 403 243 "-" "Mozilla/5.0 (Nintendo Switch; WifiWebAuthApplet) AppleWebKit/601.6 (KHTML, like Gecko) NF/4.0.0.12.4 NintendoBrowser/5.1.0.19293"

Further research shows this:

WARNING: Your ClamAV installation is OUTDATED!
WARNING: Local version: 0.99.3 Recommended version: 0.101.2

I guess we can mark this as resolved. I went back to the thread i was involved in last year regarding this same issue (https://www.clearos.com/clearfoundation/social/community/clearos-7-clamav-dansguardia-av-issue#COM_EASYDISCUSS_REPLY_PERMALINK-256911) and followed my solution there. That seemed to take care of the issue.

Thanks,

Jarett