Ethernet link mode. Auto allows the print server to operate in 100BaseTX full or half duplex, or in 10BaseT full or half duplex mode by auto negotiation.
100BASE-TX Full Duplex (100B-FD) or Half Duplex (100B-HD) and 10BASE-T Full Duplex (10B-FD) or Half Duplex (10B-HD) fix the print server link mode. This change is valid after the print server has been reset (default is Auto).

Note
| If you incorrectly set this value, you may not be able to communicate with your print server. |
1 | Press Menu. |
2 | Press  or  to select LAN. Press OK. |
3 | Press  or  to select Setup Misc.. Press OK.
(For MFC-680CN) Skip to 5 |
4 | Press  or  to select Ethernet. Press OK. |
5 | Press  or  to select Auto/ 100B-FD/ 100B-HD/ 10B-FD/ 10B-HD. (For MFC-680CN) Press  or  to select Auto/ 100B-FD/ 100B-HD/ 10B-FD/ 10B-HD. |
6 | Press Stop/Exit. |