What type of longer-lasting and reliable flash drives do you use for /srv/ folder placement?
Do you use a front or rear USB port under the antenna ?
If you use the rear port, do you also choose some extension with a well shielded cable ? My experience with back ports is tragic. There have been persistent problems with multiple types of flash drives.
In my case, the system is installed on mSATA SSD. At the time I reinstalled, I was not advised by support staff to keep this data (with frequent writes) on an SSD disk, but still to activate /srv/ on an external flash drive.
I’m definitely not going to run two SSDs on a router .