The router is a RT-AC88U. The blockfile20230510 has the same name that I deleted. That was the only listing in ASD last night. The chknvram20230518 was not in the folder last night.
My router is an RT-AC88U and the /jffs/asd/chknvram20230516 did not exist. Following the directions from CBme, I was able to see I had a different file in /jffs/asd/. Follow CDme directions above. From Putty change directory by typing.
cd /jffs/asd
List directory contents by typing.
ls
There...