Won a game then lost SR

I won a game in comp and then got off after returning i had lost almost 70+ sr. During the match my internet had to be restarted but I joined back and my team and I ended up winning the game! Can this be fixed?

“Why am I still penalized when I rejoin some games?” part

Since your internet was restarted I’ll guess it took too long for you to come back and you were penalized. (I think the time for this is 2 minutes?)