Skyworth SK-D849N will slow down after a period of time, solve the idea

Skyworth SK-D849N is an operator's customized optical cat, which is used as an AP after bridging, and the gigabit port rate will drop from 1000 Mb to about 180 Mb overnight, and it can be restored after rebooting or restoring the factory. For general AP speed drop troubleshooting experience, you can first put the particularity brought by the identity of "Lightcat-AP" in the first place, and then check according to the conventional wireless speed drop idea. You can find out what the problem is in the following order:

first eliminate the "optical cat + AP" firmware timing and slowdown mechanism
1. log in to the background to see if the "energy saving/power saving" or "PON sleep" scheduled tasks are automatically triggered at night, and turn off if there is.
2. truly set the WAN port as a "bridge" and turn off DHCP, UPnP, cloud management, and TR-069 remote configuration to prevent the local downsend configuration from locking the port rate to 100 M in the early morning.
3. Upgrade or replace the original firmware. Operator versions often have a timed slowdown strategy, so you can try to flash the public/wireless routing firmware of the same chip, or simply treat the sk-D849N as a pure optical cat and add another hard AP.
see if the ethermouth negotiation is crushed to 100 M
1. record the speed before and after the speed drop in the "Status→ Ethernet port information", if it shows "100 M full duplex", it is basically a network cable/crystal head/peer switch port problem.
2. replace a finished line of Class 5E or above, redo the crystal head, and ensure that the 8-core is fully accessible; The peer switch/router port forces 1000 M full-duplex and turns off energy-saving EEE.
check whether the power supply voltage is stable
try to replace a power supply, which can quickly determine whether it is the cause of the power supply.
scan it again according to the conventional wireless idea
1. put the light cat high, expose the antenna, and avoid metal blocking;
2. The
  2.4 GHz channel is changed to 1/6/11 with the least interference, and the bandwidth is set to 20 MHz; 5 GHz channel 149 or above, bandwidth 80 MHz;
3. turn off "wireless energy saving", "client isolation" and "WMM power saving";
4. "Allow the computer to turn off this device to save power" in the "Power Management" of the network card on the terminal side;
5. If there is a cordless phone, microwave oven, or high-power Bluetooth nearby,
  stagger the location or change the 5 GHz frequency band.
the number of connections/temperature
log in to the background to see the number of online terminals at night, and add an AP for load balancing if it exceeds 15~20. Add a small fan to the optical cat, and the core temperature is higher than 70 °C and it is easy to slow down and restart.
last resort
flash the public version firmware after backing up the configuration, or directly retire the AP function of the sk-D849N - only let it be responsible for optoelectronic conversion, and install a real Gigabit router/AX series AP in the back, which can completely bypass the "midnight slowdown" logic in the operator's firmware.

can basically be positioned according to steps 1→2→3; If the port negotiation always maintains 1000 M and the wireless rate drops, focus on 4 or 5; if you really can't flash the firmware, use 6, once and for all.

The spring breeze...Reply

#30

This problem is quite common, mainly due to the firmware timing policy of the optical cat AP causing the rate to drop, and the firmware and timing tasks should be considered first when troubleshooting, and then check the cable and port settings.

3 个月前

Tears flowedReply

#29

It is recommended to upgrade the firmware or replace the pure AP device to avoid being restricted by the operator.

The sword roars l...Reply

#28

It is recommended to check whether the firmware has a timer reduction setting, and then troubleshoot the network cable and port configuration, which may be a common but easily overlooked fault.

The stars and moo...Reply

#27

It is recommended to directly replace the pure optical cat with an independent AP to avoid firmware restrictions and the impact of scheduled tasks, which is much more stable and reliable.

Dead leaf butterflyReply

#26

This optical cat when the AP is indeed prone to slowdown, it may be related to the firmware, it is recommended to check whether there is an impact of scheduled tasks first, and then consider upgrading the firmware or replacing the device.

Drunk lying on th...Reply

#25

It is recommended to check whether the firmware has a timing limit first, and then confirm the status of the network cable and switch port to avoid unnecessary trouble.

#24

This optical cat is quite annoying when the AP slows down, especially in the middle of the night, it suddenly slows down, and it can only be restored by restarting, so it is recommended to check the firmware and scheduled task settings first.

DreamerReply

#23

The problem of slowing down when this light cat is AP is quite annoying, especially in the middle of the night. It is recommended to check whether the firmware has a timing policy, then confirm the network cable and port settings, and upgrade or replace the device if necessary.

The moon's shadow...Reply

#22

This problem is quite annoying, when the AP slows down, it is good to restart, it may be related to the scheduled task in the firmware, it is recommended to check the settings first before considering upgrading.

Ink stains the bl...Reply

#21

This optical cat is indeed easy to slow down when used as an AP, which may be a problem with the operator's firmware, and it is recommended to upgrade or replace the device to avoid affecting the network experience.

The old man did n...Reply

#20

Don't forget to check whether the firmware has a timing limit, as well as network cables and port settings, which is really a pit that is easy to overlook.

4 个月前

Ink paintingReply

#19

This problem is quite annoying, it is restored after the speed drops, it may be related to the operator's firmware, it is recommended to upgrade or change to a pure optical cat with AP to be more stable.

The stars are the...Reply

#18

It is recommended to check whether the firmware has a timing slowdown policy, and then check whether the network cable and switch ports are normal to avoid automatically locking the speed in the middle of the night and affecting the experience.

The clouds are de...Reply

#17

It is recommended to check whether the firmware has a timed slowdown setting, and then troubleshoot network cable and port problems, which may be a hidden energy-saving strategy.

Walk through the ...Reply

#16

This optical cat is quite annoying when the AP slows down, it is recommended to check the firmware and timing tasks first, and then troubleshoot the network cable and port settings, which may be a hidden energy-saving mechanism at work.

Skyworth SK-D849N will slow down after a period of time, solve the idea

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Skyworth SK-D849N will slow down after a period of time, solve the idea

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