Recently switched to a 5590 from the Zytel provided by T-Mobile [as was]. Plugged straight in to the fibre connection: no problem there. However, LAN ports 3&4 provide no connection. The user interface registers a connection on the ports when a cable is plugged in, so it’s not completely broken. I contacted AVM, and was advised to check the following:
Often, in such cases, it is the Internet provider that is reserving one or two LAN ports (usually LAN 3 and LAN 4) for IPTV. So please ask your ISP directly whether this may be the case in your scenario.
Is anyone able to advise whether this is the case - or whether they have also has this issue with the 5590 or similar model?
One offered solution was:
If they are, and you do not require IPTV, then you could test the behaviour when selecting "Other Internet Service Provider" from the list on page "Internet > Account Information" and possibly re-entering your credentials, because logging in with a different provider may then release the reserved LAN ports.
I briefly tried this, but AFAICT there are not credentials to supply, and selecting that option did not establish a connection.
Any ideas or advice appreciated!