Here you will find the latest software releases, maintenance versions and patches. Use the software release, maintenance version or patch that matches the router or switch model you are running.

If you are looking for AlliedWare Plus software updates click here.

Using a maintenance version or patch for a different model or software release may cause unpredictable results, including disruption to the network.

Download AT-TFTP Server files for AR Series Routers, multi-layer switches.
Last updated: 12-Sep-2007 Version: 2.0

Product	Software Release	Maintenance Version	Latest Patch	Release Date
AT-8600 Series	2.9.1	sr291-17 sr291-16 sr291-15 sr291-14 sr291-13 sr291-12 sr291-11 sr291-10 sr291-08 sr291-05 sr291-04	--	03-Dec-2008
	2.8.1	sr281-07 sr281-06 sr281-04 sr281-03 sr281-02 sr281-01	--	20-Jul-2007
AT-8700XL Series	2.9.1	87291-17 87291-16 87291-15 87291-14 87291-13 87291-12 87291-11 87291-10 87291-08 87291-05 87291-04	--	03-Dec-2008
	2.8.1	87281-07 87281-06 87281-03 87281-01	--	20-Jul-2007
AT-8800 Series	2.9.1	86291-17 86291-16 86291-15 86291-14 86291-13 86291-12 86291-11 86291-10 86291-08 86291-05 86291-04	--	03-Dec-2008
	2.8.1	86281-07 86281-06 86281-04 86281-03 86281-01	--	20-Jul-2007
AT-8900 Series	2.9.1	89291-17 89291-16 89291-15 89291-14 89291-13 89291-12 89291-11 89291-10 89291-08 89291-05 89291-04	--	03-Dec-2008
	2.8.1	89281-07 89281-06 89281-04 89281-03 89281-01	--	20-Jul-2007
AT-9800 Series	2.9.1	sb291-17 sb291-16 sb291-15 sb291-14 sb291-13 sb291-12 sb291-11 sb291-10 sb291-08 sb291-05 sb291-04	--	03-Dec-2008
	2.8.1	sb281-07 sb281-03 sb281-01	--	23-Jul-2007
AT-9900 Series	2.9.1	89291-17 89291-16 89291-15 89291-14 89291-13 89291-12 89291-11 89291-10 89291-08 89291-05 89291-04	--	03-Dec-2008
	2.8.1	89281-07 89281-06 89281-04 89281-03 89281-01	--	20-Jul-2007
AT-9900s Series	3.2.1	x900-24X_321-03 x900-24x_321-02 x900-24X_321-01	--	05-Jun-2008
	3.1.1	9924s_311-04 9924s_311-03 9924s_311-02 9924s_311-01	--	13-Sep-2007
Rapier Series	2.9.1	86291-17 86291-16 86291-15 86291-14 86291-13 86291-12 86291-11 86291-10 86291-08 86291-06 86291-05 86291-04	--	03-Dec-2008
	2.8.1	86281-07 86281-06 86281-04 86281-03 86281-01	--	20-Jul-2007
SwitchBlade Series	2.7.5A	sb275a09 sb275a07 sb275a06 sb275a05 sb275a04 sb275a02	--	31-Jul-2008
	2.7.4	sb274-02 sb274-01	--	26-Aug-2005
x900-24X Series	3.2.1	x900-24X_321-03 x900-24x_321-02 x900-24X_321-01	--	05-Jun-2008
	3.1.1	9924s_311-04 9924s_311-03 9924s_311-02 9924s_311-01	--	13-Sep-2007
x900-48 Series	2.9.1	89291-17 89291-16 89291-15 89291-14 89291-13 89291-12 89291-11 89291-10 89291-09 89291-05 89291-04	--	03-Dec-2008
	2.8.1	89281-06 89281-04 89281-03 89281-01	--	01-Feb-2007

Product	Software Release	Maintenance Version	Latest Patch	Release Date
AR400 Series	2.9.1	54291-17 54291-16 54291-15 54291-13 54291-12 54291-11 54291-10 54291-08 54291-05 54291-04	--	03-Dec-2008
	2.8.1	54281-08 54281-07 54281-06 54281-05 54281-04 54281-03 54281-02 54281-01	--	05-Sep-2007
AR725, AR745	2.9.1	52291-17 52291-16 52291-15 52291-13 52291-12 52291-11 52291-10 52291-08 52291-05 52291-04	--	03-Dec-2008
	2.8.1	52281-08 52281-07 52281-06 52281-05 52281-04 52281-03 52281-01	--	05-Sep-2007
AR750S, AR770S	2.9.1	55291-17 55291-16 55291-15 55291-13 55291-12 55291-11 55291-10 55291-08 55291-05 55291-04	--	03-Dec-2008
	2.8.1	55281-08 55281-07 55281-06 55281-05 55281-04 55281-03 55281-02 55281-01	--	05-Sep-2007

Obtaining Release Licences

Software releases are licenced and require a password to enable the release. You can freely download this release and load it on to your router, but you can not enable (run) the release without the password. For information on obtaining release licences and passwords, contact your nearest Allied Telesis distributor or reseller.

Patches are available free of charge and do not require a licence or password.

Your router must have FLASH memory to upgrade the software release using these downloadable release files. If your router does not have FLASH memory, you must install some FLASH memory.

To order FLASH memory, contact your authorised Allied Telesis distributor or reseller.