WiFi Network randomly switches to "Open", but does not allow any devices to join.

@XfinityVictor​ Hi, thanks for the response! Yes, there is a splitter connected from the coax running into the house from the street to the rest of the house. This is the splitter connected with two coax lines going out into the house: https://www.dfcco.com/telco/regal-ds2dgh10-2-way-splitter-1ghz/

There are no other splitters connected throughout the house (that I can see). There are 3 coax outlets in the house – one is used for connection to our Gateway (XB3 (DPC3941) CISCO gateway) located downstairs, back of house. Another used in an office (upstairs, back of house) is connected to a TP-Link AX1800 Access Point. The AP receives network signal via MoCA connectivity from the gateway (two goCoax MoCA 2.5 Adapters are used to facilitate communication over MoCA).

The issue primarily occurs when I am upstairs at the front of the house (furthest away from both the AP and the Gateway). It also occurs if I am in a separate office, which is also upstairs but in the back of the house a couple rooms away from the AP. 

Please let me know if you might need any other information. Would be interested to hear how the splitter might impact this, and if there are any other recommendations of how I could go about serving network connectivity throughout my house without the use of this splitter (if that's where this question is going). Thank you! 

First things first: the issue where your network appears open (no lock icon) even though it’s password-protected and WPA2 is enabled is definitely not normal. That’s a red flag that something’s going sideways either with the broadcast signal or how the security protocols are being recognized by your devices. The fact that it sometimes corrects after a hard reboot tells us the Gateway may not be consistently applying the network settings, which could be a sign of firmware instability or even hardware aging—especially with the XB3, which is a bit older at this point.

Now, the splitter you mentioned (Regal DS2DGH10) shouldn’t cause issues by itself, as long as the signal levels are healthy and the coaxial wiring is intact. However, with MoCA adapters and multiple endpoints, even a well-rated splitter can sometimes introduce just enough signal degradation or impedance to create inconsistent network behavior—especially across longer distances and multiple rooms.

Here are a few things we can try or consider next:

1. Factory Reset & Reconfigure from Scratch – If you haven’t already, doing a full factory reset on your XB3 Gateway and setting everything back up from scratch can help clear out any lingering glitches or misapplied settings. This ensures your WPA2 security and SSID broadcast are properly applied.

2. Swap the Gateway – The XB3 has served many customers well, but it is an older model. Upgrading to a newer Gateway like the XB7 or XB8 could offer much stronger performance, better coverage, and more reliable network settings—especially for smart devices and updated security protocols.

3.  Try an Xfinity xFi Pod – Since the issue seems to happen when you're furthest from both your Gateway and Access Point, adding an xFi Pod could really help strengthen the WiFi signal and provide a more seamless connection throughout the home. They’re designed to integrate perfectly with your Xfinity Gateway and adjust automatically based on usage.

Let us know how you’d like to move forward—we’re here to help every step of the way!

Hi @XfinityAirelle thanks for the detailed response here! I forgot to mention in my initial post, but I've attempted to do a full factory reset on my XB3 Gateway (as well as my AP, just in case) some time ago, but unfortunately didn't see improvement after doing this.

Would love to try and swap the gateway out, given that the XB3 is a bit of an older model. What would be the steps for upgrading to a newer gateway like the XB7 or the XB8? 

Thanks!