@TP-Link It isn't! Getting this error: "Fehlercode: 4503 - Die eingeladene Datei wurde nicht akzeptiert."

@TP-Link I have this problem too. My firmware is up to date. I cannot follow the recommendation to change the channel to 40 and width to 40MHz as I get an error code 80002 : Unknown error.

We have only had this problem for a month or so, but it seems to be getting more frequent.

@Krooms 

Hi, I noticed that your model number is Archer VR2800V, not Archer VR2800;

And you already have the latest firmware for Archer VR2800v;

@Lepus 

Hi, the reason why you wanted to change the channel and channel width is because of the unstable 5ghz connection, right?

Did the error code only appear when making these changes?

@TP-Link Thank you! Changing my channel and channel width resolved my 5ghz problems I have been having for ~2 months. I had started suffering drop outs, slow connections and inability to connect to other devices on the network. Everything is much smoother again now. It also prompted me to learn what these settings actually mean.

@TP-Link I tried EVERYTHING. The router rebooting every time. When there are both 2.4 and 5ghz connections enabled, and there is a peak of 2.4g (like Speedtest or streaming a video), the modem reboots. When I enable ONLY 2.4 or 5ghz everything seems to keep working but I can't use just 5ghz because my two RE500 repeaters are too far, and I can't cover my whole house if I move them) 

I already changed my modem with another identical one (VR2800 v1 00000000), tried every firmware (even beta) and every Wi-Fi setting in both bandwidth, I'm pretty disappointed about that. 

p.s. the solution doesn't solve the problem.

@EnricoBara 

Hi, sorry for the delay.

I saw that you mentioned you had already replaced with another identical Archer VR2800 and did both of them have the same issue?

When the VR2800 rebooted himself, did you see all the lights turn off then come back on?

After that, if you go to the system tools>system logs, would all the logs be cleared out?

At the same time, may I know how many devices are connected to 2.4ghd and 5ghz and what are their model numbers?

Thank you very much

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