DHCP Causing Problems?

I have gone on about equipment testing, verification and validation since 2000 and never surprised when I come across the same issue.
In this case I have an old Linksys router configured as my lab router with WiFi and DHCP disabled. This router is connected to a backup link that is much slower than the main link for the office. Every so often, the router forgets its settings and DHCP wakes up. I immediately notice that internet response isn’t as good, etc.

I always consider these scenarios a great opportunity to test my tools, knowledge and troubleshooting skills. Since I’m not a fan of rebooting, in this example I found by simply checking DHCP on/back off and saving the changes, the router remembers that DHCP is disabled.

As I mention in the video, I see this with a lot of consumer grade equipment, but must admit that I have seen this in enterprise level equipment as well.