Polygon(Matic)-Metamask issue I experienced (and how it was resolved)

I had this issue not being able to connect my Polygon(Matic) chain in my Metamask for a couple of days.

It turned out that it was due to my RPC was set up as old RPC. If you have the same issue, try updating RPC to https://polygon-rpc.com/ , this resolved my issue. (FYI, My old RPC set up was https://rpc-mainnet.matic.network)

Or if updating RPC sounds a bit complex, you can go chainlist.org and search Polygon mainnet and add it to Metamask.

Hope this helps!