Can access Steam through wifi. Access Denied, you dont have permission

Hello fellow Ubuntu users,

I use Ubuntu 20.04.2 LTS. Normally this could be a duplicate, but it's not the same as others i came up when googling.

So, my problem is with the steam website(store, community) and the client i have installed on ubuntu. Both when i connect to the website or i open the steam client i have already installed give me the error:

Access Denied, you dont have permission to access "" on this server. Reference #18.45496768.1625514946.1b02d5b

Clues:

1. I can ping to steam from terminal and packets come and go normally.
2. I cant connect to steam even from my cellphone when on wifi. It gives me the same error. But i can connect normally through mobile data. So i guess it's the wifi problem.
3. I noticed this problem a couple of days ago. So i snapshoted back with Timeshift at before i had this problem, yet to no avail. So something i installed is probably not the problem.
4. I cleared the DNS cache. Not a solution
5. I noticed the problem after i installed apache2 and php, but because of 3) i crossed out this reason.

Any other ideas? I would be very gratefull.

Thank you in advance, for your effort.

UPDATE Ok. The idea just came to me a couple of mins after posting this. I restarted the router and everything seems to work normally. I will keep this thread open for anyone else that may help.

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