And it may be a phone ( Samsung S25 ultra) issue as well. Trying to upload photos in discord or mobile, 90% of the time it doesn't try or fails after a long time. As soon as I put on vpn (ipvanish) it works fine. I checked private DNS setting and it was set to DNS.google. I changed it to automatic and it fixed it, once. Next I'll try off. Any other router adjustments, phone settings I should be looking at? Sometimes mobile data works as well, sometimes where I am located the signal is weak so it's hit or miss.
Source: r/wifi · by /u/Tirnaz87