On this page you can influence several parameters for your DSL connection. With this you can react to special line conditions, for instance, to disturbances in a certain frequency range or an unnecessarily high DSL transmission rate.
Please note the following:
The following section presents a description of the individual settings.
Preferred latency path
Radio Frequency Interference (RFI)
Under some circumstances radio transmitters located nearby can interfere with DSL communication (RFI: Radio Frequency Interference). This normally will be detected automatically by the FRITZ!Box. If this detection is not correct or if additional interference is present, the necessary settings can be configured here.
Throughput rates
Some lines are synchronized at the maximum transmission rate, although only a limited part of them contractually and actually available, e.g. a synchronization at 6144 kbit/s on a 2048-kbit/s line. In this case reducing the synchronization to the transmission rate than can actually be used increases the stability of the connection. Similarly, in the case of occasional synchronization losses, it may be appropriate to sink the maximum downstream rate in order to increase robustness with regard to time-dependent interference, for instance, through a signal cased by switching on electrical equipment.
Hide transmission range
If a certain frequency range is especially sensitive to interference, it can be shielded from use by DSL. If you specify too large an area, it can happen that the line is synchronized only at a reduced rate or that no synchronization takes place at all.
Signal to Noise Ratio Margin (SNR Margin)
The SNR margin is the security interval between the DSL signal and noise. The higher this interval, the more stable the connection and the lower the transmission rate. Here you can configure the optimum SNR margin for your needs and performance. The only prerequisite is that the DSLAM allows this setting.
Miscellaneous
Special optimizations can be enabled and disabled here
Save Diagnostics File
Click the "Save Diagnostics File" button to save the DSL diagnostics data collected since the FRITZ!Box was started. If you have a support request because of problems with DSL, AVM support staff will request this file.