Welcome to the community!
I am very curious of what causing one of our your computer to get a slow connection speed. I tried to use your community details to pull up the account but no match.
I would like to check your connection status, I tried to use your community details but no match. Feel free to drop me your account details (Username/Customer ID together with the complete address on file).
In case you need a reference: How to send a PM.
Thanks for all the responses everyone although i would have rather avoided it i ended up installing windows 10 which worked as a solution to the problem and now my upload speed is working as normal