Thanks for the tips about TFTP settings. Once I changed them to match yours (with my IP), I was able to test CLI and it started working right away. However, it crapped out at the exact same spot as the GUI. I also got the same 'BackedOff' message.
I also tried your idea of disabling the Windows Firewall and left my AV disabled, but it craps out at the same place, ie right at the end of the first file transfer.
I tried rebooting my PC, rebooting the AP (but not yet factor, that is my next test for tomorrow, it is late now).
The settings for TFTP plus the time time were a BIG help as at least I am making some progress.
Now I can't get the TFTP to trigger, I am not sure what happened. It has been a long day and I'll try again in the morning. Strange as I have used the same TFTP program to update several SG500 switches and those always work first attempt.
I tried your idea on my Win7 main desktop. Tomorrow I will try it from my Win10 laptop and my other desktops too to see if maybe I messed up something will this PC.
Thanks for all your help!
I tried it again with just a path of "/" (ie, no "." dot and of course, no quotes), but I got the same error.
I'm enclosing a screenshot of the e:\cisco folder.
I created a folder for the ZIP that Cisco sent me, then I unzipped the big file into the same folder, I unzipped TFTP32 (the 64bit version does the same thing) into the same folder. (Certificate test.txt - that is an idea I had to get around the browser warning, but I gave up on that idea and like your CLI idea better).
Note Tftp shows 100% complete on the Tftp Server tab then disappear but never continues. On the Log Viewer tab, the IP changes to 127.0.0.1 and displays the attached screen. This time, with a path of just '/', I did get different ACK, but it still stops.
For your idea of recovery mode....
I have a PoE injector, so do I connect my PC's ethernet port to the 'Data In' port on my PoE injector? Would I need a cross-over cable? Or should I connect my PC to a switch and then connect the router to the 'Data In' port on injector?
I am tempted to return the entire unit to Cisco. After all, they initially didn't want to send me the link to the firmware update, but offered to replace the entire unit. I figured it would be simpler and faster to update. Boy, was I wrong:)
I really appreciate all your help and suggestions, but I have no other options but to RMA the unit. I hope Cisco won't give me hassles.
I tried wired connections, disabled Windows Firewall, disabled the antivirus, tried CLI and GUI, tried Win7-Win10-even Linux, tried different PCs and laptops, even tried from a virtual machine with just Windows 7 installed. I tried different TFTP programs, both in 32 and 64 bit versions. I made sure the time was accurate, I checked the MD5 hash of the ZIP file. I waited over 1/2 hour for the TFTP to maybe start up again, but once it crashes, nothing ever happens.
In ALL cases the TFTP stops with errors and the status shows as 'BackedOff'. It starts off saying 'updating' but when the TFTP crashes, it switches to 'BackedOff'.
Unless anyone else has some other idea, I have to give up. I work for my own company and will have to eat a week's income over this problem.
If you are ever in the Montreal area, drop me a note and I'll buy you lunch. I really appreciate all your help!
