Hello support team,
We bought a DSL-3580L (version EU_1.00, region EU) router and connected some IP phones.
The problem is, that the connection is gone after approx. 60 seconds. Our provider said that the NAT timeout setting is not correct, but there is no option to change it.
Is it somehow possible to change the timeout with telnet?
Further question: There is a new version, EU_1.01. Will all settings be gone if I update the new firmware?
Thanks a lot and best regards!