Visitor
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1 Message
High level network support need PLEASE!!
My Windows 11 laptop has trouble accessing banking and other secure websites when connected to my Xfinity XB8 gateway's main Wi-Fi network, [Edited: "Personal Information”] 5G. The laptop uses a Realtek RTL8821CE Wi-Fi adapter and connects on 5 GHz with a strong signal.
The laptop previously received self-assigned IPv4 addresses (169.254.x.x) with no IPv4 gateway. Windows Event Viewer also recorded TCP/IP Event 4199, reporting an IP address conflict for 10.0.0.99 with MAC address [Edited: "Personal Information”].
The laptop now receives 10.0.0.242 with gateway 10.0.0.1, but USAA still fails with ERR_ADDRESS_UNREACHABLE. DNS lookups to Xfinity DNS server 75.75.75.75 time out on the main network but succeed on my TP-Link RE105 extender network, [Edited: "Personal Information” 5G_EXT. Banking websites also work on the extender.
The gateway was recently replaced, and changing the Wi-Fi security setting from WPA3 to WPA2 did not resolve the issue. Please investigate the XB8's DHCP/IP conflict handling and DNS/connectivity for clients on the main Wi-Fi network. I need to keep the extender working for my appliances, so please avoid splitting the Wi-Fi bands or resetting the network without discussing the consequences first.
XfinityRaul
Official Employee
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3.2K Messages
4 hours ago
@user_u4agra Thanks for reaching out to us via Forums. I would be more than happy to take a look at your internet signal to see what we can do to get this resolved. To be able to discuss account specifics, please send a direct message by clicking the chat icon in the upper right corner of the page. Click on the pen and paper icon, then enter “Xfinity Support” in the “To” section. Here's a link that includes a guide on how to send a DM https://forums.xfinity.com/conversations/guidelines/how-to-direct-messaging-within-the-forum/697ba1e570934d009185c514.
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EG
Expert
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122.7K Messages
2 hours ago
@user_u4agra @XfinityRaul
Please circle back here and post any possible solutions for the issue here in these open public forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.
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