It is a cert issue, this was not present in R7. Please go back and read this thread as it will tell you the solution.
I probably should have stated that I have already inserted the previous code mentioned in this thread into both a basic CMD line and Powershell with both stating that they were successful with no overall change in internet accessibility. At the same time within the certs manager it has created a allowance under trusted root certificates for 127.0.0.1.
Given that the provided code seems to have run fine on my end and produced the required change, is there anything else I should do to finalize this or is it possible that this may stem from a different issue in this case?
Edit : So I went and deleted both the existing cert and key files, started and turned off the SPT server, thus recreating the files and redid the process and it seems like my internet has returned and the server console has stopped spamming notifications as well.
Tested it with 2 back to back raids with a livestream in the background and did not encounter a degradation in the playback so it seems like this has indeed fixed it for me.
Thanks for the help!