What's new in 1.12:

*) fixed problem - SFP port stops after ethernet port cfg change (RB260 only);
*) change default vlan mode on RB260 to 'optional';
*) fixed problem - SNMP worked even when disabled;
*) fixed problem - SFP autonegotiation setting was not saved (RB260 only);
*) fixed uptime to be correct;
*) fixed RB260GSP poe-out to work correctly after downgrade & upgrade back;

rb260GS (default config) upgrade from 1.9 to 1.12. Web-gui not working. --> Power cycle needed

On download page is bad link to 1.12 (download is for 1.11) http://download.mikrotik.com/swos/swos-rb260-1.11.lzb
Right to be - http://download.mikrotik.com/swos/swos-rb260-1.12.lzb

rb260GS (default config) upgrade from 1.9 to 1.12. Web-gui not working. --> Power cycle needed

It can happen when upgrading from older SwOS version. The fix is included since SwOS v1.10 and switches reboot properly with further upgrades.

On download page is bad link to 1.12 (download is for 1.11) http://download.mikrotik.com/swos/swos-rb260-1.11.lzb
Right to be - http://download.mikrotik.com/swos/swos-rb260-1.12.lzb

The download link is corrected now.

I have upgraded RB260GS to version 1.12 to fix SFP auto negotiation bug in version 1.10.

But after upgrade .i cant access via web GUI and cant ping switch’s IP.

How can I fix this problem?

Do you tried power cycle?

we have serious problem with RB260:
we are using RB260 with singlemode 1-fibre SFP modules (1310, 1550nm) GigaLight GPB-3524L-L2CD-C (cisco compatible) "blue"

and another end of fibre is
EDGECORE ES4624-SFP or SIGNAMAX 065-7851 or brocade FCX624S-F or mikrotik
or RB2011xxxx with "yellow" GPB-5324L-L2CD-C

EDIT: now tested also with Mikrotik S-53LC20D (blue) and S53LC20D (yellow) and WE HAVE THE SAME RESULTS - after power disconnect+reconnect SFP is unable to connect without SFP module unplug + replug

problem is SFP initialization after SHORT power failure or FAST DISCONNECT/RECONNECT power adapter on RB260 - ethernet ports are working,
but in switch management is SFP module not visible
after unplug and plug SFP works normally, problem problem is with SFP initialization / handling on RB260?!

tested also 1-fibre SPB-7710CIS-HTR - SPB-7610CIS-HTR and working correctly ...?!

2-fibre SFPs are working normally, so problem is with 1-fibre SFP handling/negotiation/initialization?? ...

CAN U PLEASE MAKE FIX FOR THIS BUG????!!!

ok, if u dont fix this problem soon we send u back 100pcs of rb260 as unusable and other customers shoud follow ...

This is not support forum. If you want to ask mikrotik, write to support@mikrotik.com.

Try 1.13