unable to connect via tor today

[#1]

Hello,As of today I've been unable to use tor browser (won't connect, in bridge mode either)
Then I went to tor website (on firexfox), and got this:
An error occurred during a connection to www.torproject.org. Cannot communicate securely with peer: no common encryption algorithm(s).
Error code: SSL_ERROR_NO_CYPHER_OVERLAP

I saw in another thread (unable to access plusnet website) that the abovementioned message might be related to chromium-based browser(s). I have tried chrome and edge, with the same, nil effect. With opera it's nil too, UNLESS I turn on proxy and then I can open tor project site. So, the above suggestion, as the issue might have something to do with chromium-based misconfiguration doesn't work with chromium-based opera in proxy mode?

Should I be worried?
Or, more importantly, how to solve this?

Regards,
n.

[#2]

Plusnet haven't sorted out their SHA1 problems, this has been going on for nearly a month with no update in site.

[#3]

Me too, I am unable to log into Plusnet using Chrome - it works using MS Edge.

The error message is  

This site can’t provide a secure connection

portal.plus.net uses an unsupported protocol.

ERR_SSL_VERSION_OR_CIPHER_MISMATCH

Regards Thackie

[#4]

---

@ont wrote:
Plusnet haven't sorted out their SHA1 problems, this has been going on for nearly a month with no update in site.

---

Sorry, I'm not sure that the PN SHA1 issue is related to the TOR project, or have they take over the running of that?

[#5]

@thackie2015  - see https://community.plus.net/t5/Everything-else/Unable-to-access-Plusnet-website/td-p/1935635/jump-to/...

@rrfcpczkae - that usually happens if safeguard or some other content filter is active.

[#6]

@dvorak , @rrfcpczkae -Thanks for that. I turned off all security disabled malwarebytes and mcafee extensions and still could not access the main site using Chrome. (I can access via MS Edge).

I can access this forum via Chrome .

Not satisfactory but I guess I will have to live with that .

[#7]

Hello,

It would appear that your hint is 'on target', as I do have parental filters on, however they were on until the day before yesteday too, and I could still access tor project website and use tor as a browser all the time without any problems.
Another timeline coincidence is that about the same time (the day before yesterday), MS built-in antivirus started flagging and blocking tor.exe as 'malicious'. It's been fixed in their av signature update, but I wonder if that could have, somehow, triggered some plusnet systems to block their site as precaution.
But, ultimately, I should have started with 'the usual suspect': the problem began about the time of a new tor update, which I installed. So, back to front 'solution': tor 12.5.5 dated 27th September works without any problems. Which does not solve the issue of what triggers blocking their website on plusnet, but then, I guess, this will get sorted, eventually, plus their site is easily accessible via opera proxy (presumably via firefox equivalent too, as well as vpns).

Regards,

n.

[#8]

Its fixed all working on Chrome this morning.

Thank you