Can mirrors block my wifi signal?

Due to various constraints, I can not easily relocate my wireless router, and it is currently situated such that there are three walls and two mirrors between the router and my bed, where I frequently lose my wireless signal. Are the mirrors blocking or reflecting the wireless signal, or is it the walls? And what can I do about it?

Solution 1:

A (fairly modern) mirror shouldn't block your signal.

If there are two mirrors between your bedroom and the router: is there a bathroom, too? If that's the case then i would suspect that the tiles on the bathroom walls are one of the factors leading to your signal loss.

Is the building you live in build from armored concrete (like it's usual in Germany, for example)? Then you'll have another big factor.

Solution 2:

It's conceivable an older mirror could cause issues. The glass shouldn't matter at all, but if they are heavy backed (silver or lead) it could be a problem. You're more likely to experience signal interference from other wireless sources like additional routers, cordless phones, etc.

It could also be the walls, but it would depend on what is in the walls. If it is a wall with a ton of plumbing and wiring, it could effectively block a wifi signal.