OK. That may be bad. It will limit you to ISP packages less than 100Mbit. If you live somewhere that can only get 10Mb DSL, then it is much less of an issue. IF you live somewhere that higher speed ISP packages are available, then a new router is worthwhile. Your router may also not support dual band WIFI -- 2.4Ghz and 5Ghz. That is a required feature today.
Tell us
- what ISP speed you have
- what model your current router is
- what country you live in
- If you think you will increase your ISP speed in the near future.
Those details will help recommend options.