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Tips for WiFi routers

The future of communication systems is Wi-Fi, it develops at a rapid pace, but still cannot provide the reliability and speeds of the cable networks.

If you follow several simple rules for proper operation of wireless routers, you can ensure significant improvement of their work and therefore be more satisfied with the service used.

Choosing a router and settings.

Like most consumer devices, routers can be divided broadly into three classes: low class - mass routers for domestic purposes; middle class - mass routers for domestic and business purposes; and high class - for professional purposes. Routers have different parameters for CPU power and data processing speed, different standard, number of antennas, coverage and speeds that can support the number of simultaneously connected users and others.

In order to ensure the maximum quality of service, below we have published a list of routers showing frequent deviations from normal operation or creating problems in the Telnet network.

Setting up the router is of utmost importance for its normal operation, therefore it is recommended that settings are made by Telnet employees.

Location.

Wireless routers act as radio signal transceivers, but the data transmitted between your device and your computer depends on the coverage, which is not equally effective everywhere, due to physical obstacles - walls, furniture, mirrors, metal objects, etc., or due to presence of other wireless networks, which can cause interference and deterioration of the signal.

When choosing a suitable location for your router, the most important problem you need to solve is that of ensure a good enough signal (coverage) to all premises. You should also bear in mind that the router must be provided with connection to: power supply cable (220 V), the Telnet LAN cable and in case of cable connection to a PC – a LAN cable from the router to the PC.

The main problem you need to take into account when selecting a suitable location for the wireless router is the presence and the number of barriers between the client devices and the router. Depending on the type of construction, the signal may be completely lost when passing through 2-3 walls, even if the actual distance between the devices is only 5-10 meters. It is recommended that the router is located in the central part of the residential area. Thus, the users in all rooms will be at equal distances from it (and behind an equal number of walls). If the apartment or the house is large, you may need to use a second router to ensure better coverage.

Radio spectrum pollution.

The next problem with coverage and low speeds is the so called radio spectrum pollution. The frequency range determined for Europe is 2.4 GHz. It is divided into 13 channels with a bandwidth of 20 MHz and the presence of more than one wireless network in the same or similar channel affects the signal. If there are too many wireless networks nearby and all channels are "overcrowded", they may interfere with your network and it may not work properly - too much interferences will be caused by the neighbouring networks. In case you see a number of available networks (routers) when installing your connection, it is very likely that the real speed that you achieve will be much lower than the router's specifications.

Hardware limitations.

It is important to know that the wireless cards of all modern laptops have energy management settings. Very often, when the laptop is connected to the power supply, the card is operating at its maximum capacity. However, when the laptop is running on battery power, it automatically switches to "saving" mode, which reduces the sensitivity and the power. Disabling the energy saving settings of the laptop would lead to increased reliability of the connection to the router, but at the cost of faster battery discharge.

Attention! Telnet recommends you to follow the instructions for safe operation of terminal devices provided by the device manufacturer, as well as to disconnect the device from the power supply and remove the Internet cable from the WAN port during STORMS, RAIN and THUNDERSTORMS.
Telnet is not liable for any damages to terminal devices as a result of external factors and force majeure, including overvoltage or power surges caused by lightnings.

List of routers that are likely to cause some issues:

manufacturer

model

version

client issue**

network issue

fix

Linksys

WRT54GC

v2, v3

DHCP, wireless encryption

yes

yes***

Linksys

WRT120N

-

n/a

yes

no

Sweex

?

?

p2p traffic overload

no

no

Crypto

?

?

p2p traffic overload

no

no

Belkin

F5D723*

all

n/a

yes

no

SMC

SMCWBR14T-G

-

route cache overflow

yes

no

Tenda

W541R

-

multicast storm

yes

no

Tenda

W316R, W311R

-

ip spoof, flood, open dns

yes

no

Linksys

WRT54GH/GL

-

n/a

yes

no

Netgear

WGR614

v7

multicast storm

yes

no

D-Link

GO-RT-N150

*

faulty behaviour of LAN/WAN interfaces, ip spoof

yes

yes***

Asus

RX3041, RT-N10E

*

open dns

yes

no

TP Link

740N ver.6

 

lower service quality

no

no

TP Link

841N ver.10, ver11

 

lower service quality

no

yes***

Important! Telnet Ltd reserves the right to refuse setup of defective and faulty WiFi routers, as well as to discontinue the service in case of faulty client device, pursuant to item 18.2, Section IV of the End-User General Terms and Conditions.

List of eligible routers:

Linksys

WRT54GL

 

WRT54GS

Buffalo:

all models *

TP Link:

all models *

D-Link:

all models *

* with the exception of models listed in the table as routers likely to cause issues
** the described problems may never occur
*** troubleshooting assistance is provided at our offices
Last modified: 2020-05-08

If you encounter any issues or deviations from the normal service parameters, or if you have questions related to the operation of your devices, we are ready to provide all necessary consultation, diagnostics and assistance on the lines of the 24-hour Customer Service Centre – 062/603071; 0888149259; 0889115415, as well as by email – support@telnet.bg.

Sincerely
The Telnet Team