Errors (pkts) on Downstream
I bought the TP Archer VR600 V3 AC2100 VDSL modem yesterday and set up the internet. The firmware was the latest, so I didn't update anything. I initially installed it with the default settings. There's no internet slowdown, nor am I losing internet. But hundreds of Errors (pkts) are appearing on Downstream within hours.
While my previous modem (ISP modem: TD-W9970 v3), on the same line, didn't give a single error even after being turned on for days even weeks, why is VR600 V3 giving hundreds of errors under the same conditions? Please, I need your help and guidance.
I reset the modem using Factory settings and adjusted some settings, but I couldn't find a solution.
On same line, on the same DSL Up Time, one has no errors, while the other has 33 Errors (pkts) on Downstream.
I'm also sharing the images; please take a look!
I wonder if this could be related to Current Rate (kbps) on Downstream? Because Archer vr600's is higher.
Upstream's current rates are the same and no error.
Hardware version: Archer VR600 V3
Firmware version: 1.7.0 0.9.1 v009e.0 Build 240929 Rel.31907n
Hardware version: TD-W9970 v3
Firmware version: 21.12.01.01006
The system log section displays some information and notice logs.
I called TP-Link's call center for support today. The answer I got was that I should try plugging the modem into someone else's line and test. They said they couldn't do anything until I did that. That answer seemed like a joke. 
972 errors in 4 minutes with a single device connected?
Hello @Joseph-TP
First network diagram:
modem (ISP modem: TD-W9970 v3) in bridge mode + Archer c80 (stands for wired connection as router mode) ((wired&wireless client devices = No Error
Second network diagram:
Only VR600 V3 ((wired&wireless client devices = dozens, hundreds, sometimes thousands of Errors appearing at once!
Current Rate (kbps) of ISP modem on Downstream is 51176 but Archer VR600's 51199. Archer VR600 has Errors (pkts) on only Downstream.
Both of them have the same Upstream Current Rate (kbps) (15356) There are no Errors (pkts) in Upstreams. I wonder if this could be related to Current Rate (kbps) on Downstream? 
ISP:TURK TELEKOM (TTNET)_VDSL
I've modified modem MAC adress, MTU size (1492), Authentication Type:PAP
55 errors in 8 hours of use, 10 errors in half an hour of use so far. All of these errors are, of course, on the downstream side.
The number of errors can suddenly reach four digits. This is really frustrating!
Also tried to enable SRA, it doesn't actually work.
I don't understand how the SNR margin on the ISP-provided modem is around 15, but it drops so much on the VR600. Furthermore, there are no logs for those errors. I'm stuck at this point.