In a perfect world, you would have a central NTP for your network, and all devices on your network would use that NTP server to update their time. That NTP server would update from a publically accessible NTP servers, like time.windows.com or the NTP Pool. However, for the purposes of SSL timing, the errors between using different NTP servers shouldn't be a big deal.
To check NTP, go to the shell, and run
ntpq -p
and paste the output here (in code tags).
Code:
remote refid st t when poll reach delay offset jitter
==============================================================================
*eggburt.positiv 85.199.214.100 2 u 28 128 377 28.988 3.424 2.023
+time.rdg.uk.as4 85.199.214.101 2 u 6 128 377 24.699 1.247 4.958
x.ns.gin.ntt.ne 249.224.99.213 2 u 1010 64 0 31.417 4.201 0.000
Based on the errors from the three browsers, we can pretty safely assume the issue is with the SSL protocol negotiation. In my experience, this usually translates to a protocol mismatch, but I think that's highly unlikely here, largely because FreeNAS doesn't let you tweak those settings (so unless you made a non-standard change, like forcing an outdated SSL version, everything should be good). If not a protocol mismatch, the usual other reason is some browser issue (clear the cache, and you clear the problem). However, given that this is happening on multiple machines with multiple browsers, that tells me it's something with the server, and time is probably the next most common issue.
Response :- Thanks I have checked the NTP Server and I will change the battery as its an easy option.
Something else just occurred to me: have you configured your default gateway and DNS server(s) in the Network configuration? If you don't have your gateway or DNS servers configured, FreeNAS won't be able to resolve the NTP pool IPs.
response:- default gateway I have as my router IP Address, and nameservers as 8.8.8.8 and second as 8.8.4.4
Response :- what I don't get is I have RedHat Laptop and another Windows 10 laptop that can access without issue!??!
EDIT: For the certificate, nevermind. I was thinking that viewing the certificate details showed you the parameters used to generate it.
Response :- Again not aware of any thing specific that I would have changed as being a Noob I would not want to risk it!