Hi, all.

For the past few years, every 90 days or so, I've imported my current LetsEncrypt Certificate into my 2927 (and previously 2763) without difficulties.

I'm unsure if it's the most recent firmware, but I can no longer do this. I'm doing via "Upload Certificate and Private Key", pointing to two files (cert.pem and privkey.pem), clicking on "Import", all to no avail (nothing happens at all).

I emphasise, I've done things this way, using the same filenames and (to the best of my knowledge) file formats for about four years now, and am mildly frustrated that it's stopped working. I'm aware that there are other ways of doing this, and at the moment, I'm importing a router generated root cert into Firefox etc. and getting around things that way, but it's a not the way I want to do things.

I've also tried converting the keys I have to PKCS12 format, with identical results.

Any ideas?

Thanks.