Thank you for taking the time to reply. Yes, I have tried a local upgrade and that fails as well unfortunately.
One thing I noticed in the release notes is the highest version listed for online upgrading or local upgrading is 188.8.131.52.246 (page 7 on the below link) and I am running 184.108.40.206.253. I don't know if this is an oversight in the release notes or perhaps I have to downgrade to 220.127.116.11.246 before upgrading to 18.104.22.168.195. It seems odd that one would have to do that though.
Here is what I have discovered at this point:
Prior to performing an online or local upgrade I start with the following:
After having performed the online or local upgrade I receive the following and I downgrade as instructed:
At this point I remain with 22.214.171.124.253 on my R510s.
I noticed in browsing the forums there were suggestions to try different browsers. I tried Chrome and Edge with identical results.