Check also in Operative System firewall to have answer yest to enable firewall rule for allow external application to connect PHD2 server (window showed first time you run PHD2 server).

At last check the antivirus or Windows Defender is lock the communication to and from PHD2.) Guiding Setting.

If the guiding error exceeds this number, a guiding error is assumed.

After this number of retries, guiding is considered to have failed.

Dithering is optionally done by the guiding system between a specified number of exposures in order to shift the image center slightly so hot pixels do not appear in the same location in all your images.

By dithering, when sub-exposures are stacked by your image processing software, hot pixels can be largely eliminated as statistical outliers.

The amount maximum of dithering during sequence must be choosed directly in Sequence setting.

The Dither Setting here is related to settling of dithering operations.

If guiding has not settled by this time, a guiding error will be assumed.

If unchecked, RoboGuide will not choose a saturated star as a guide star.

This can be useful at long focal lengths where you can find only a few stars and the best is saturated.

By setting this to less than the maximum ADU value of your guide camera, you can force Voyager to choose dimmer guide stars that might improve your guiding.

This was introduced to solve a problem with guided dithering using TheSkyX.

This is a workaround to try to avoid this message and continue guiding.

Planetarium 9. Plate Solve 10.

Rotator 11. SQM 12.

Safety Monitor 13.

Viking 14. Voyager 15.

Weather 16. Web Dashboard 17.

License Roboguide 9.1