computer errors 403,503

[semo97]

I get these errors trying to bring up the forum. It started about 5 months ago. I try several times every day to get on and might get on once in 6 days. It also says up in the browser that sight is not secure. I will try and check back when I can get on. I have nortons but had it for years, i did some up dates off and on. This is windows 10. Thanks

[scooperhsd]

What browser ?
ISP ?
DNS settings ?
What IP do you show "www.valkyrieforum.com" at ?

My answers -
C:\Windows\System32>ping www.valkyrieforum.com

Pinging valkyrieforum.com [66.45.242.206] with 32 bytes of data:
Reply from 66.45.242.206: bytes=32 time=32ms TTL=53
Reply from 66.45.242.206: bytes=32 time=30ms TTL=53
Reply from 66.45.242.206: bytes=32 time=75ms TTL=53
Reply from 66.45.242.206: bytes=32 time=31ms TTL=53

Ping statistics for 66.45.242.206:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 30ms, Maximum = 75ms, Average = 42ms