On 8/3/2021 11:57 AM, beebeet...@posteo.de wrote: > The router works fine most of the time -- except that it stops > working every one and a half day, and I have to reset the modem > for it to work again.
In my experience with my ISP (Comcast in the US), I note the following: When the lladdr changes, the modem needs to be restarted in order for the new lladdr to be seen. If I don't restart the modem, I see the symptoms you document. My ISP gives out leases with a 3-day duration, so the leases renew every day and a half. The "random" lladdr catches my eye. But I don't know how frequently that changes. Could it change every time the lease is renewed? My first suggestion might be to stay with a single lladdr for a while to see if your setup works for more than a day and a half. Once (if) you have that working baseline, they start experimenting with random lladdrs.