XB3 bridge mode requires frequent IP /release /renew

I have the ARRIS TG1682G connected to my Windows 10 desktop Ethernet with onboard Realtek PCIe GbE Family chip.  I'm not using an external router with this gateway.

In bridge mode, I get frequent connection drops and must do ipconfig /release and /renew in order to restore operation quickly.  If I wait and do nothing, the connection is eventually restored automatically after some minutes have elapsed; the time it takes varies.  My connection speed is unaffected in bridge mode.  According to ipconfig /all, my DHCP lease duration is supposedly 2 hours.

Most often, the connection to a given site or app will be good until I do something else on the site or app, such as use a popup dialog or other functionality.

Example:  I'll be watching a YouTube video short and the video plays w/o a problem until I open the comments section, then I instantly get the busy/buffer animated icon that just spins and comments don't load (and sometimes the video pauses) until I manually /release /renew (or wait it out).

Example 2:  I'll be on a given site and it's working fine, until I open another tab, then the connection instantly drops until I /release /renew (or wait it out and manually refresh the pages).

It also drops when I don't do anything new/different, but the time between drops is longer.  I would think this might be due to content having already been downloaded (such as a video stream) and not requiring the connection, which has likely dropped, but I just don't see it because it reconnected before the video buffer emptied.  However, example 3:  chat sites.  The connection may hold for say half an hour – I know this because I see input from users continue to scroll during this time – but, as soon as I open a dialog box (e.g., to view or change my profile), 90% of the time it causes the connection to drop.  If I don't do anything and just watch the room, connection still drops occasionally.

Drops occur with IPv6 enabled or disabled.

These drops occur with various browsers and non-browser apps.

Creating a script that performs /release /renew at regular intervals isn't a good solution, since the connection almost always drops immediately upon doing something new/different, so I'd still have to wait for the next interval – this script would have to renew practically every second to account for potential user activity, which would not only be ridiculous in and of itself, but for Windows to perform the release/renewal takes time, so the script would conflict with the ongoing ipconfig process from the previous script commands.

Also, I'd rather not create a hotkey and have to renew manually so frequently.  Even with a hotkey workaround, it's still infuriating when my activities are interrupted like this.

I don't see any DHCP configuration possible in the gateway menu, nor in Windows network adapter settings other than enable/disable.