Interesting.
The PW5 that I jailbroke had only been offline for a few months and was on 5.16.something. After I applied the hotfix but before I could do the ota renaming step, it updated itself to 5.17.1.0.3.
If you're up for it I'd probably just try factory resetting the kindle and starting from the beginning. And if that didn't work I'd reset, manually update to 5.17.1.0.3, and then try...
Maybe also re-download all the jailbreak files in case something didn't download properly. Actually, I'll just post the sha256sums:
353c2f5059b48aa27466ac5591b862b50ea44bf7350d23e49e b20aafea65f84d step1-WinterBreak.tar.gz
eebf8fed8cb2dd0e3249176c8444e4d78e408d998235fd056c e913159f610ab9 step2-Update_hotfix_universal.bin
fd2ba33ed0d8fb69b32802e302f222e56edd65124f494bce32 aa1a92a1398584 step3-kual-mrinstaller-khf.tar.xz
269b1db205281c0181bd1560a0270612a86bb42b12a05db985 4c15d0040f2994 step4-Update_KUALBooklet_ALLDEVICES_KS2_install.bin
Not sure why the forum software is adding spaces in the sha sums - ignore them.
Also I doubt it matters but check that your system time is correct. And that airplane mode is on when it should be and off when it should be.
It's such a needless pain, isn't it
