Short analysis:

• DSL speed is correct, Booster is currently not delivering anything. I don’t see a 5G connection (although shown in the booster).
• What performance before? Don’t plan any speed tests before February 15, 2024
• Reboot sequence has already been explained. Booster off/on, router off/on with the power button (no soft reboot via GUI)
• I see a lot of router downtimes. Please leave the device switched on after the reboot.
• Devolo PLC are major sources of interference!

After the reboot please measure with nperf.com and post a screenshot here.

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@Scorpion67 wrote:

I use LAN Anschluss 1GBit

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Doesn’t matter, 1G or 2.5G.

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@Scorpion67 wrote:

• What performance before? before before 02/15/24

Answer:

DOWNLOAD Mbps

210- 382UPLOAD Mbps82-86

• IB3 with FW 14.08.00 is it relevant?
• Should I turn off Devolo PLC?
• I can only do a reboot and speed test with nperf.com after 6 p.m. and then post a screenshot here

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Looks good.
This FW is for the new backend. Speed ​​will be further optimized.
You can disconnect the PLC for testing and check it again. Important: Never plug the router or booster power supply into the PLC.

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Scorpion67 wrote:

Turn router off/on with the power button

after 15 minutes the red light is still flashing, is this normal?

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Hi @Scorpion67

Switch off the box and remove the power from the booster, then switch on the box and wait with the booster until the Internet box lights up white.

That’s how it’s always worked for me so far 😉

LG

r00t

The speed tests show that everything is ok. Reception could be improved by alignment. The up/down is normal with the new backend, but only occurs in the speed tests. You don’t notice this in normal use.

@Scorpion67

The less RSRP -dBm the better.

But your reception isn’t bad, it may be that you can improve it a little.