I'm having this exact issue on my Xr1000 on firmware xr1000v2 1.1.0.22_2.1.34
Streaming serivces continue fine, but when trying to load websites from a browser on mobile, it freezes and comes back with dns probe issue. Has been happening for abouyt 2 weeks now. I have static DNS set to cloudflares DNS servers since I installed the router in July 2024. I suspect an automatic firmware update has caused the issue but I am at the limit to my netwroking skills trying to resolve this with a workaround.
Update, recreated the issue and the logs were as follows:
[DHCP IP: (192.168.1.4)] to MAC address --:--:--:--:--:--, Monday, Feb 24, 2025 11:39:05
[DHCP IP: (192.168.1.2)] to MAC address --:--:--:--:--:--, Monday, Feb 24, 2025 11:39:04
[DHCP IP: (192.168.1.4)] to MAC address --:--:--:--:--:--, Monday, Feb 24, 2025 11:39:03
[DHCP IP: (192.168.1.2)] to MAC address --:--:--:--:--:--, Monday, Feb 24, 2025 11:39:03
[DHCP IP: (192.168.1.2)] to MAC address --:--:--:--:--:--, Monday, Feb 24, 2025 11:39:02
[DHCP IP: (192.168.1.2)] to MAC address --:--:--:--:--:--, Monday, Feb 24, 2025 11:39:01