Linksys E2500 DD-WRT Upgrade Instructions and Enabling 5ghz with Tomato Firmware -

Linksys E2500 DD-WRT Upgrade Instructions and Enabling 5ghz with Tomato Firmware

1.) Flash directly to this file:

*I was never able to get the larger "Mega" file to work, at least not initially so I recommend the file above.

To enable 5ghz I had to do the "Clear NVRAM" Option before it was shown.

2.) Or if you don't need 5ghz (most devices do not support it and cannot see it) I prefer DD-WRT:

Latest versions here:


dd-wrt upgrade problems when you have more than one unit that you have accessed before from the same browser.
Clear cache and cookies

#when upgrading make sure you choose reset to firmware defaults or you may have problems getting web interface after like me!

I could not even reboot the connection would reset on me until I cleared cache and cookies it seems it was inteferring from another dd-wrt that was on the same

After upgrading only telnet was up (no port 80 web interface):

Connected to
Escape character is '^]'.

DD-WRT v3.0-r29218 mega (c) 2016 NewMedia-NET GmbH
Release: 03/07/16

Linksys E2500 login: root
     ___  ___     _      _____  ______       ____  ___
    / _ \/ _ \___| | /| / / _ \/_  __/ _  __|_  / / _ \
   / // / // /___/ |/ |/ / , _/ / /   | |/ //_ <_/ // /
  /____/____/    |__/|__/_/|_| /_/    |___/____(_)___/
                       DD-WRT v3.0

BusyBox v1.24.1 (2016-03-07 09:39:54 CET) built-in shell (ash)

root@Linksys E2500:~# reboot
root@Linksys E2500:~# Connection closed by foreign host.

#this did not fix it so I held the reinitialize button on the bottom of the unit for 10seconds
#this did fix it with the reset/reinitialize (I should have chose reset to defaults when upgrading)
I still have this problem even when choosing reset to firmware defaults

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