@Jonathan-D Thanks for updating, Jonathan! Interesting behavior you've experienced. I went ahead and created a ticket in our system for our technicians to do a bit more troubleshooting with you, if...

Additionally, can you check and make sure your firmware is updated across the devices?

@Jonathan-D Great to hear, as former IT I appreciate that that was step 1 haha When a device is connected to the guest network, does it get an IP address? Also, have you tried turning off the portal...

@Florian-T It seems like the switch is crashing. When did this issue start? Were there any changes to the network or new systems installed around that time (example being an NVR or security camera...

@fabio_brandao1 How are your dual WANs connected? If one of them has latency issues you wish to avoid, why not configure your WANs in Link Backup mode? That way, the more reliable WAN will be your...

@Jonathan-D Have you tried with multiple different devices on the Guest Network to check if it's just the customer's device or if it's across all devices? Also, I do see the uptime across your...