Bought my own equipment. Connected and installed!
MAC address filtering works like a charm with the 3rd party wifi router.
Decreased my monthly bill by $10, as I'm no longer renting Comcast's equiment.
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Yeah, unless the device's MAC address is in the Allowed devices' list, it shouldn't be able to connect to the WIFI router, regardless if it knows the WIFI password or not. <-- This is how it used to be for "Allow" option, which is the one I've always had selected.
I called customer support and they recommeded I get xFi. I declined.
So it appears that both have the same bug, and subsequently I'd presume both device's firmware comes from the same source code containing the bug.
This is a big security bug. If they don't fix it, I'm thinking of buying my own modem and returning this rental back to Comcast--it'll save me $10 per month, plus no buggy MAC filtering firmware.
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I just found out that for TG1682G, MAC address filtering options "Allow All" and "Allow" are the same thing. I think this is a bug in the firmware of the device. To elaborate:
In the menu selection of "Gateway > Connection > WiFi" of the TG1682G router, the description therein, quoted, is as follows:
MAC Filter Setting is specific to each Network Name (SSID). Select a MAC Filtering Mode. * Allow- All (Default): All wireless client stations can connect to the Gateway; no MAC filtering rules. * Allow: Only the devices in the "Wireless Control List" are allowed to connect to the Gateway. * Deny: Wireless devices in the "Wireless Control List" are not allowed to connect to the Gateway.
The setting which I've selected is "Allow", the middle one.
So, I brought my work laptop home and on it, selected my home network, connected and entered the WIFI password. The problem is that it connected to the internet right away. I was expecting that the laptop would not be able to connect to the router at all, unless I had added the MAC address to the allowed devices list. However the laptop was able to connect, obtain an IP address via DHCP and reach the outside world, the Internet. That is, even if devices know the WIFI password, they shouldn't be able to connect to the router, unless either, * the "Allow" option is selected and their MAC address has been added to the "Known devices" list, or
* the "Allow All" option has been selected, in which case knowing the WIFI password is all that's needed.
And herein I believe lies the bug. The behaviour above, seems to be consistent with "Allow All" setting. But I've selected "Allow"--meaning, I'm expecting to have to click on "Add" under the "Learned devices" list, to add it to the "Known devices" list in order to allow the laptop to connect to the router, obtain an IP address and subsequently reach the outside world.
This is the behavour I'm used to--I've had this router for the past 4 years, and I remember previously, I've done the exact same thing with other devices and I've had to login to the router and add the MAC address to the known devices list manually or select "Add" from the learned devices list, before the device was able to obtain an IP address and reach the outside world. (I've always had "Allow" the selected option in the "MAC filtering" section.)
This seems to me to be a bug in the firmware. This is the firmware version the router shows to be running at the moment:
eMTA & DOCSIS Software Version:10.1.11.SIP.PC20.CT Software Image Name:TG1682_2.7p6s2_PROD_sey Advanced Services:TG1682G Packet Cable:2.0
Can anyone suggest a solution, or if this is a legitimate bug, file one with the developers?
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