Thank you for the update, I'm glad to hear it is working for you.
As you know this was a long and involved process, we went through every possibility to address the issue.
If there was an underlying ISP issue that is certainly not something either of us could know or control without going through all of these steps.
You have paid your fee to the site, the intent of which is to cover my time and expertise in attempting to address the issue.
I am an independent technician and I've spent my personal time, unpaid, in an effort to assist with the question for which you solicited my services. This site works on the honor system, and to that end, I have prioritized working with you ahead of other paying customers.
Although you’ve already paid your fee to the site, I am only compensated for my efforts when customers such as yourself leave positive feedback for my work. I apologize this is not the outcome you had hoped for, though this is really beyond either of our control. I do hope you’ll consider leaving a 5 star rating for me, rather than “shoot the messenger”, so that I may get credit for my time spent in good faith to answer your question accurately. Rating 1 or 2, or not rating at all, does not produce a refund, it only penalizes me for trying to help. Asking for a refund has the same effect of me having to work for free for all of my time spent in a good faith effort to help.