I am experiencing frequent disconnects on my home ADSL connection (it drops several times a day). My setup is a Netgear R7000 running DD-WRT, connected to a D-Link DSL-320B running in bridging mode.
Whenever the connection drops, the DD-WRT syslog shows entries like this:
Jun 4 11:02:13 DD-WRT kern.info kernel: device vlan2 entered promiscuous mode
Jun 4 11:02:14 DD-WRT kern.info kernel: device vlan2 left promiscuous mode
Jun 4 11:02:14 DD-WRT user.info syslog: pppd : PPP daemon successfully stopped
Jun 4 11:02:14 DD-WRT daemon.info pppd[531]: Exit.
Is 'promiscuous mode' the cause of the connection drop, or merely a result of it? If it isn't the cause, is there anything else I can do on the router to try and help identify the problem?
Edit: Screenshot of my vlan setup (from Setup -> VLANs):