Plexconnect ATV2 and 3 stopped working

I had an issue with my home network the other day and ever since, both ATV2 and 3 can't see Plexconnect, I just get the Trailers app again. It's been working fine for almost 2 years.
Nothing changed on the server (At least not that I can think of)
Not sure if it was on wifi or ethernet before. It's on ethernet now.

I deleted the version of plexconnect I had, reinstalled it. Changed the config file. It runs fine with no error but the ATV's can't see it

I deleted the cert on the ATV3 but can't put it back
An error occurred (109)

Server is a 2008 macpro running MacOS 10.11
Server with plex and plexconnect is 10.10.1.100
Plex is 2.4.23

ATV3 is A1427 running 7.2.1 (8011)
DNS Server on ATV is 10.10.1.100

Modified the config file, did not detect the right ip. Disabling plexgdm does nothing
[PlexConnect]
enable_plexgdm = True
ip_pms = 10.10.1.100
port_pms = 32400
enable_dnsserver = True
port_dnsserver = 53
ip_dnsmaster = 8.8.8.8
prevent_atv_update = True
enable_plexconnect_autodetect = False
ip_plexconnect = 10.10.1.100
hosttointercept = trailers.apple.com
port_webserver = 80
enable_webserver_ssl = True
port_ssl = 443
certfile = ./assets/certificates/trailers.pem
allow_gzip_atv = False
allow_gzip_pmslocal = False
allow_gzip_pmsremote = True
loglevel = High

LOGS
21:42:36 PlexConnect: ***
21:42:36 PlexConnect: PlexConnect
21:42:36 PlexConnect: Press CTRL-C to shut down.
21:42:36 PlexConnect: ***
21:42:36 PlexConnect: started: 21:42:36
21:42:36 PlexConnect: Version: 0.5-dev-110516
21:42:36 PlexConnect: Python: 2.7.10 (default, Aug 22 2015, 20:33:39)
[GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.59.1)]
21:42:36 PlexConnect: Host OS: darwin
21:42:36 PlexConnect: PILBackgrounds: Is PIL installed? False
21:42:36 PlexConnect: IP_self (from settings): 10.10.1.100
21:42:36 DNSServer: started: 21:42:36
21:42:36 DNSServer: ***
21:42:36 DNSServer: DNSServer: Serving DNS on 10.10.1.100 port 53.
21:42:36 DNSServer: intercept: ['trailers.apple.com'] => 10.10.1.100
21:42:36 DNSServer: restrain: ['mesu.apple.com', 'appldnld.apple.com', 'appldnld.apple.com.edgesuite.net'] => 127.0.0.1
21:42:36 DNSServer: forward other to higher level DNS: 8.8.8.8
21:42:36 DNSServer: ***
21:42:36 WebServer: started: 21:42:36
21:42:36 WebServer: ***
21:42:36 WebServer: WebServer: Serving HTTP on 10.10.1.100 port 80.
21:42:36 WebServer: ***
21:42:36 WebServer: started: 21:42:36
21:42:36 WebServer: ***
21:42:36 WebServer: WebServer: Serving HTTPS on 10.10.1.100 port 443.
21:42:36 WebServer: ***

Thanks