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[eyermannf]

Hello,

I'm having a DGS-1100-08P in our trainings area. The switch powers an acccess point, a VoIP telephone and a camera.

The port connected to my AP shows lots of RX Errors (approx 20% of number of packets). Strangly, the uplink port to my DGS-1210-52MP shows the exact same number of RX Errors. Pinging the AP over some time shows no packet Drops. The DGS-1210-52MP shows also no errors.

I know RX errors are typically cable problems, but why do two ports show exactly the same number of RX errors?

Best regards,

Frank

[FurryNutz]

Do the errors follow or continue if you change ports?
Do errors continue if you disconnect any of the devices?
What FW version if currently loaded?

[eyermannf]

I'm running FW 1.0 (the only one I've found).

If I connect my AP to a different port, error follow. They stop if device is not connected.

Best regards,

Frank

[FurryNutz]

And is the AP the only device causing these errors?

What happens if you factory reset this AP and set up the AP from scratch? What Mfr and model is this AP?
I presume you have swapped LAN cables with a different cable?

[eyermannf]

Hello,

AP is a Unify UAP-AC-Pro. I have 15 of this devices (same Firmware) deployed without any problems (but at other Switches). Haven't yet swapped AP.

I've swapped ports on the Switch (Port 5 and 6).

What I'm wondering is not the fact of RX Errors, it's the *same number* of RX Errors on two different ports (one to the AP, the other uplink). If there are some weird packets, shouldn't it be RX error on one port and TX on the other (however, can't Image what Kind of packets these could be :-)) My uplink switch shows no Errors for this port.

Best regards,

Frank

[FurryNutz]

So if you disconnect the AP, do the errors continue or no?

[eyermannf]

Hello,

I'll have to check. But I think not.

Best regards,

Frank

[FurryNutz]

Good Luck.

[eyermannf]

Hello,

now I'm being back at my client's location.

When I disconnect the AP the errors stop.

I've connected my laptop to the switch, and I can observe the same error patterns as for the AP (directly with a 2m cable, on a different port): lots of RX Errors and the same number of Errors on the uplink port.

The ports with my 100M devices (camera and VoIP telephone) show no Errors.

The Switch is two weeks old. Do you think it's a Hardware issue?

Best regards,

Frank

[FurryNutz]

Yes, this maybe an issue HW wise.

I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this. The US offers Chat support for consumer products at support.dlink.com. 24/7.
Let us know how it goes please.

[HBX1]

Hello,

we have the same problem with this switch and a Ubiquity Wifi AP(UniFi AC LR AP)? We have changed the cable connection, but no improvement.

The connection between the devices is also 100MBit and not 1000Mbit?

Any ideas?

BR

[FurryNutz]

I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this.
Let us know how it goes please.

Hello,

we have the same problem with this switch and a Ubiquity Wifi AP(UniFi AC LR AP)? We have changed the cable connection, but no improvement.

The connection between the devices is also 100MBit and not 1000Mbit?

Any ideas?

BR

[J1mbo]

I just posted a similar issue:
http://forums.dlink.com/index.php?topic=75013.0

Guess what, there is a Unifi device connected, in my case ER-X. The RxErrors actually span trunk ports to other switches in my case.

Could it be flow control?

[FurryNutz]

http://forums.dlink.com/index.php?topic=75013.0

I just posted a similar issue:
http://forums.dlink.com/index.php?topic=75013.0

Guess what, there is a Unifi device connected, in my case ER-X. The RxErrors actually span trunk ports to other switches in my case.

Could it be flow control?

[J1mbo]

The port connected to my AP shows lots of RX Errors (approx 20% of number of packets). Strangly, the uplink port to my DGS-1210-52MP shows the exact same number of RX Errors. Pinging the AP over some time shows no packet Drops. The DGS-1210-52MP shows also no errors.

The switch logs an RxError for every frame passed in either direction on a port who's size is over 1500 bytes, for sure. However, I'm struggling to think why your UAP would be generating such jumbo frames.