I have the following problem, either my internet is EXTREMELY slow or it doesn't work at all. Have had this problem since the day before yesterday.
When I got up normally this morning, everything was still working. But at some point I got a message from my PC that I was offline. In the WLAN list was only "No Internet". Apparently I looked at my cell phone and found that YouTube wasn't loading. Then I completely disconnected my router and modem from the power and then turned it on again and connected. However, my internet was EXTREMELY slow. The thumbnails weren't loading on YouTube. Discord messages arrived 10 seconds later. And that can't go on like this. The Wi-Fi symbol on my router only flashes at the same time and the "laptop" symbol on the modem only flashes quickly. I've tried every connection on the router, but my internet is always disgustingly slow.
Router: TP LINK tl wr841n
Modem: Hitron CVE-30360
Provider: Vodafone / Kabel Deutschland
Check on the router which connection speed is specified and contact Vodafone support. Maybe there's a problem in your postcode area.