4.0 final doesn't work on RB750

Hello I first tried upgrading from 4.0rc1 by dragging the routeros-mipsbe-4.0.npk into files window and rebooting; it succeeded but ethernet interfaces didn’t work.

Then I tried netinstall; netinstall 4.0 doesn’t detect RB750 as easily as netinstall 4.0rc1. After several attempts the reinstall succeeded, but still ethernet didn’t work. Then I downgraded again to 4.0rc1 and ethernet works.

Please help.

Did you upgrade the BootLoader first?

Are you joking? This is brand new product, it cannot have old bootloader.

But yes, I also checked that and it has bootloader 2.22. I might have upgraded it after upgrading 3.x → 4.0rc1.

did you use new Netinstall from the webpage, as instructed?

I pulled 4.0 via Torrent from download page and the torrent contains Netintall.zip. I always use the same netinstall version as packages I want to install. The titlebar says “MikroTik Netinstall for RouterOS v4.0” so I guess it’s ok.

Netinstall basically works, but it has some difficulties detecting the RB750. I first start Netinstall then power on RB750 with reset button pressed until activity stops flashing. Under Netinstall 4.0rc1 it always appears in routers list, under 4.0 not everytime. Tested on 2 different laptops, 2 different OSes - XP and Win7. This is the first problem.

The second problem is that I have working 4.0rc1 and I just copy 4.0 image then reboot, router upgrades but ethernet stops working. I can see it starting, during boot ethernet already turns off and remains off forever. Then I use netinstall to return back to 4.0rc1 and it starts working again. Then I upgrade again and it stops working again. The behaviour is consistent.

Thanks.

Personally i have no problems with upgrading RB750 to RoS 4.0

every person in our office is connected through a RB750 just for testing, and none had this issue. Please, if anyone else has this problem, let us know. Currently I think it’s and isolated incident.

Then I think my hardware may be faulty – althought it’s only 2 weeks old. Please tell me, does RB750 have any beeper? Manual says so, but I never heard any beep from it.

which manual you mean? no it doesn’t have a beeper

RouterBOARD 750 Quick Setup Guide and Warranty Information
http://www.routerboard.com/pricelist/download_file.php?file_id=106

In case you wish to boot the device from network, for example to use MikroTik Netinstall, hold the RESET button of the device when starting it until it > beeps > and the LED light turns off, and RB750 will start to look for Netinstall servers.

ouch, that’s one nasty typo. It’s been fixed, thanks.

we found another RB750 which had similar issue with ethernet, we will look into it, and I will post any updates !

chojrak11
try also the old Netinstall http://mt.lv/download/netinstall-3.30.zip and if it detects it, reinstall RB750 with the v3.30

if you succeed, send us supout.rif file from v3.30

Done. The email has the same subject as this topic. Thanks.

ROS 4.1 fixed the problem. Thanks.