Two friends have Ubee cable modems which became unreliable for WIFI when they changed there SSID's and passwords which was restored when the cable company did factory resets back to default settings. They changed them out for Arris (Arris bought Motorola from Google) modems which allow password changes with no issues on WIFI so far. I own my Motorola modem without WIFI and all passwords changed with outboard Linksys and Asus WIFI routers covering my house and property flashed with DD-WRT. Keep in mind that the cable companies do monitor your forward and reverse RF no way around that and on modems they own they have other tools they admit and others they deny exist or deny that they use. And there is this..Just what I want some clowns in my leased WIFI modem. Less than a year ago, Comcast was sued over its WiFi hotspot program, which essentially turned residential customers into hotspots for other Comcast customers or hotspot subscribers. Comcast used this to make a great deal of money off of its own residential customers. The problem was that Comcast didn't see the need to have customers opt-in to this program and was perfectly happy using customers' electricity and, in some cases, bandwidth to power the service. That and the fact that the opt-out settings on the router controls were given to bouts of amnesia made the company look pretty crappy, but, hey, you know, Comcast. Cablevision Follows Comcast Down The Compulsory WiFi Hotspot Rabbit Hole | Techdirt Comcast Sued Over Router Update That Makes Your Wi-Fi Hotspot Public, Ignores Your Opt-Out Preferences | Techdirt Some like Tomato they are both great but I like DD-WRT. Main Page - DD-WRT Wiki Tomato Firmware | polarcloud.com Then there is Open WRT which I have never used but many like it and another option. OpenWrt All three are like Linux distros, free open source and thought to be more secure.