A portable router with an onboard 2000mAh rechargeable_battery. It provides 150MBit/s 802.11bgn wireless connectivity, one Fast Ethernet port as well as two USB ports (of which one only offers power but no data connection).
Note: Many of these routers are marketed as a "3G travel router" but none actually include a 3G modem - the marketing term rather means that the OEM firmware supports a certain range of USB 3G/4G modems because it contains the drivers! Ignore that, because with OpenWrt ANY router with USB supports 3G hardware…
|Atheros AR7240 @ 400MHz||32 MiB||4 MiB||1x 100MBit||1x 2.0||YES||NO|
Althought M301 and MR3040 seems similar on the outside, there are differences.
So you can either download a daily-built snapshot or build your own from sources.
WARNING: Snapshot images are always risky. Check the forum discussion for latest opinions on available images.
As with most TP-Link Routers this one can be flashed using the TP-Link Webinterface. Connect to the M301 router via Ethernet cable at IP address 192.168.1.1, login to the router's web GUI (default login/password: admin / admin), and overwrite the factory firmware by installing the openwrt-ar71xx-generic-tl-mr3040-v1-squashfs-factory.bin like a regular firmware update.
Wait for the progress bar to finish twice (the device will reset itself in the process), and proceed with basic configuration as with any fresh OpenWRT install.
Note that some software uses 192.168.0.1 and some software uses 192.168.1.1.
How to configure LEDs in general, see the LED section in the system.
The M301 has 1 bi-color LED:
|LED name||LED color||LED print||Internal name||Trigger|
|LED||Red||N/A (fixed supply)||N/A|