Master433

I have mentioned that it's only my brother's phone connected to the WiFi when testing on both WiFis, but I forgot to mention that this router is the only thing that's sending out a network in our house. The only neighbour we have is my brother's friend who also has only 1 WiFi router

I'll try contacting our ISP, hopefully it's just the router having issues

We both use Fiber connections with the same data plan and same ISP Connection is delivered through fiber cables and into a router

So my brother has noted this issue where he has a high ping (jumps from 40ms to around 150ms sometimes) when playing Wild Rift when connected to our home 5G Wifi but when he goes to our friend's house and connects to their 5G Wifi, he gets low ping constantly. Both Wifis have the same ISP and data plan, and after checking Speedtest, our Wifi has very good download and upload speeds. I have conducted the tests with only my brother's phone being the only device connected. I'm wondering if a) It's a problem with our router or the ISP itself, or b) Someone has somehow hacked into our network and causing some high ping? This is very confusing for me

So I have an old HDD and I want to copy files back to my PC but I'm worried it has viruses, is there a safe way to check and see if the HDD has a virus?