CBK40 slow upload speeds

we'd need more info to help. Its like saying my car used to drive 100mph but now it only goes 20mph. Why? Details are needed.

1. who's your isp?

2. What speeds do you pay for (upload and download)?

3. How are you testing speeds? With the built in app? With your phone? A hardwired pc? (hardwired pc is best)

4. What website are you testing with? Sometimes the servers they test with aren't reliable, although those speeds should be fine

5. Do you have a screen snip of your modem connections page from the cbk40? (get both upload and download connections)

6. What have you done to try to fix it? reboot/reset/remove coax splitters-other coax line issues)

7. When you say "just connected" are you saying you just installed it? What were you using before?